(function(u){u.fn.qrcode=function(l){function x(a){this.mode=o.MODE_8BIT_BYTE;this.data=a}function p(a,c){this.typeNumber=a;this.errorCorrectLevel=c;this.modules=null;this.moduleCount=0;this.dataCache=null;this.dataList=[]}function t(a,c){if(a.length==undefined)throw Error(a.length+"/"+c);for(var d=0;d<a.length&&a[d]==0;)d++;this.num=Array(a.length-d+c);for(var b=0;b<a.length-d;b++)this.num[b]=a[b+d]}function q(a,c){this.totalCount=a;this.dataCount=c}function w(){this.buffer=[];this.length=0}x.prototype=
{getLength:function(){return this.data.length},write:function(a){for(var c=0;c<this.data.length;c++)a.put(this.data.charCodeAt(c),8)}};p.prototype={addData:function(a){this.dataList.push(new x(a));this.dataCache=null},isDark:function(a,c){if(a<0||this.moduleCount<=a||c<0||this.moduleCount<=c)throw Error(a+","+c);return this.modules[a][c]},getModuleCount:function(){return this.moduleCount},make:function(){if(this.typeNumber<1){var a=1;for(a=1;a<40;a++){for(var c=q.getRSBlocks(a,this.errorCorrectLevel),
d=new w,b=0,e=0;e<c.length;e++)b+=c[e].dataCount;for(e=0;e<this.dataList.length;e++){c=this.dataList[e];d.put(c.mode,4);d.put(c.getLength(),j.getLengthInBits(c.mode,a));c.write(d)}if(d.getLengthInBits()<=b*8)break}this.typeNumber=a}this.makeImpl(false,this.getBestMaskPattern())},makeImpl:function(a,c){this.moduleCount=this.typeNumber*4+17;this.modules=Array(this.moduleCount);for(var d=0;d<this.moduleCount;d++){this.modules[d]=Array(this.moduleCount);for(var b=0;b<this.moduleCount;b++)this.modules[d][b]=
null}this.setupPositionProbePattern(0,0);this.setupPositionProbePattern(this.moduleCount-7,0);this.setupPositionProbePattern(0,this.moduleCount-7);this.setupPositionAdjustPattern();this.setupTimingPattern();this.setupTypeInfo(a,c);this.typeNumber>=7&&this.setupTypeNumber(a);if(this.dataCache==null)this.dataCache=p.createData(this.typeNumber,this.errorCorrectLevel,this.dataList);this.mapData(this.dataCache,c)},setupPositionProbePattern:function(a,c){for(var d=-1;d<=7;d++)if(!(a+d<=-1||this.moduleCount<=
a+d))for(var b=-1;b<=7;b++)c+b<=-1||this.moduleCount<=c+b||(this.modules[a+d][c+b]=0<=d&&d<=6&&(b==0||b==6)||0<=b&&b<=6&&(d==0||d==6)||2<=d&&d<=4&&2<=b&&b<=4?true:false)},getBestMaskPattern:function(){for(var a=0,c=0,d=0;d<8;d++){this.makeImpl(true,d);var b=j.getLostPoint(this);if(d==0||a>b){a=b;c=d}}return c},createMovieClip:function(a,c,d){a=a.createEmptyMovieClip(c,d);this.make();for(c=0;c<this.modules.length;c++){d=c*1;for(var b=0;b<this.modules[c].length;b++){var e=b*1;if(this.modules[c][b]){a.beginFill(0,
100);a.moveTo(e,d);a.lineTo(e+1,d);a.lineTo(e+1,d+1);a.lineTo(e,d+1);a.endFill()}}}return a},setupTimingPattern:function(){for(var a=8;a<this.moduleCount-8;a++)if(this.modules[a][6]==null)this.modules[a][6]=a%2==0;for(a=8;a<this.moduleCount-8;a++)if(this.modules[6][a]==null)this.modules[6][a]=a%2==0},setupPositionAdjustPattern:function(){for(var a=j.getPatternPosition(this.typeNumber),c=0;c<a.length;c++)for(var d=0;d<a.length;d++){var b=a[c],e=a[d];if(this.modules[b][e]==null)for(var f=-2;f<=2;f++)for(var h=
-2;h<=2;h++)this.modules[b+f][e+h]=f==-2||f==2||h==-2||h==2||f==0&&h==0?true:false}},setupTypeNumber:function(a){for(var c=j.getBCHTypeNumber(this.typeNumber),d=0;d<18;d++){var b=!a&&(c>>d&1)==1;this.modules[Math.floor(d/3)][d%3+this.moduleCount-8-3]=b}for(d=0;d<18;d++){b=!a&&(c>>d&1)==1;this.modules[d%3+this.moduleCount-8-3][Math.floor(d/3)]=b}},setupTypeInfo:function(a,c){for(var d=j.getBCHTypeInfo(this.errorCorrectLevel<<3|c),b=0;b<15;b++){var e=!a&&(d>>b&1)==1;if(b<6)this.modules[b][8]=e;else if(b<
8)this.modules[b+1][8]=e;else this.modules[this.moduleCount-15+b][8]=e}for(b=0;b<15;b++){e=!a&&(d>>b&1)==1;if(b<8)this.modules[8][this.moduleCount-b-1]=e;else if(b<9)this.modules[8][15-b-1+1]=e;else this.modules[8][15-b-1]=e}this.modules[this.moduleCount-8][8]=!a},mapData:function(a,c){for(var d=-1,b=this.moduleCount-1,e=7,f=0,h=this.moduleCount-1;h>0;h-=2)for(h==6&&h--;;){for(var g=0;g<2;g++)if(this.modules[b][h-g]==null){var k=false;if(f<a.length)k=(a[f]>>>e&1)==1;if(j.getMask(c,b,h-g))k=!k;this.modules[b][h-
g]=k;e--;if(e==-1){f++;e=7}}b+=d;if(b<0||this.moduleCount<=b){b-=d;d=-d;break}}}};p.PAD0=236;p.PAD1=17;p.createData=function(a,c,d){c=q.getRSBlocks(a,c);for(var b=new w,e=0;e<d.length;e++){var f=d[e];b.put(f.mode,4);b.put(f.getLength(),j.getLengthInBits(f.mode,a));f.write(b)}for(e=a=0;e<c.length;e++)a+=c[e].dataCount;if(b.getLengthInBits()>a*8)throw Error("code length overflow. ("+b.getLengthInBits()+">"+a*8+")");for(b.getLengthInBits()+4<=a*8&&b.put(0,4);b.getLengthInBits()%8!=0;)b.putBit(false);
for(;;){if(b.getLengthInBits()>=a*8)break;b.put(p.PAD0,8);if(b.getLengthInBits()>=a*8)break;b.put(p.PAD1,8)}return p.createBytes(b,c)};p.createBytes=function(a,c){for(var d=0,b=0,e=0,f=Array(c.length),h=Array(c.length),g=0;g<c.length;g++){var k=c[g].dataCount,r=c[g].totalCount-k;b=Math.max(b,k);e=Math.max(e,r);f[g]=Array(k);for(var i=0;i<f[g].length;i++)f[g][i]=255&a.buffer[i+d];d+=k;i=j.getErrorCorrectPolynomial(r);k=(new t(f[g],i.getLength()-1)).mod(i);h[g]=Array(i.getLength()-1);for(i=0;i<h[g].length;i++){r=
i+k.getLength()-h[g].length;h[g][i]=r>=0?k.get(r):0}}for(i=g=0;i<c.length;i++)g+=c[i].totalCount;d=Array(g);for(i=k=0;i<b;i++)for(g=0;g<c.length;g++)if(i<f[g].length)d[k++]=f[g][i];for(i=0;i<e;i++)for(g=0;g<c.length;g++)if(i<h[g].length)d[k++]=h[g][i];return d};for(var o={MODE_NUMBER:1,MODE_ALPHA_NUM:2,MODE_8BIT_BYTE:4,MODE_KANJI:8},v={L:1,M:0,Q:3,H:2},s={PATTERN000:0,PATTERN001:1,PATTERN010:2,PATTERN011:3,PATTERN100:4,PATTERN101:5,PATTERN110:6,PATTERN111:7},j={PATTERN_POSITION_TABLE:[[],[6,18],[6,
22],[6,26],[6,30],[6,34],[6,22,38],[6,24,42],[6,26,46],[6,28,50],[6,30,54],[6,32,58],[6,34,62],[6,26,46,66],[6,26,48,70],[6,26,50,74],[6,30,54,78],[6,30,56,82],[6,30,58,86],[6,34,62,90],[6,28,50,72,94],[6,26,50,74,98],[6,30,54,78,102],[6,28,54,80,106],[6,32,58,84,110],[6,30,58,86,114],[6,34,62,90,118],[6,26,50,74,98,122],[6,30,54,78,102,126],[6,26,52,78,104,130],[6,30,56,82,108,134],[6,34,60,86,112,138],[6,30,58,86,114,142],[6,34,62,90,118,146],[6,30,54,78,102,126,150],[6,24,50,76,102,128,154],[6,
28,54,80,106,132,158],[6,32,58,84,110,136,162],[6,26,54,82,110,138,166],[6,30,58,86,114,142,170]],G15:1335,G18:7973,G15_MASK:21522,getBCHTypeInfo:function(a){for(var c=a<<10;j.getBCHDigit(c)-j.getBCHDigit(j.G15)>=0;)c^=j.G15<<j.getBCHDigit(c)-j.getBCHDigit(j.G15);return(a<<10|c)^j.G15_MASK},getBCHTypeNumber:function(a){for(var c=a<<12;j.getBCHDigit(c)-j.getBCHDigit(j.G18)>=0;)c^=j.G18<<j.getBCHDigit(c)-j.getBCHDigit(j.G18);return a<<12|c},getBCHDigit:function(a){for(var c=0;a!=0;){c++;a>>>=1}return c},
getPatternPosition:function(a){return j.PATTERN_POSITION_TABLE[a-1]},getMask:function(a,c,d){switch(a){case s.PATTERN000:return(c+d)%2==0;case s.PATTERN001:return c%2==0;case s.PATTERN010:return d%3==0;case s.PATTERN011:return(c+d)%3==0;case s.PATTERN100:return(Math.floor(c/2)+Math.floor(d/3))%2==0;case s.PATTERN101:return c*d%2+c*d%3==0;case s.PATTERN110:return(c*d%2+c*d%3)%2==0;case s.PATTERN111:return(c*d%3+(c+d)%2)%2==0;default:throw Error("bad maskPattern:"+a);}},getErrorCorrectPolynomial:function(a){for(var c=
new t([1],0),d=0;d<a;d++)c=c.multiply(new t([1,m.gexp(d)],0));return c},getLengthInBits:function(a,c){if(1<=c&&c<10)switch(a){case o.MODE_NUMBER:return 10;case o.MODE_ALPHA_NUM:return 9;case o.MODE_8BIT_BYTE:return 8;case o.MODE_KANJI:return 8;default:throw Error("mode:"+a);}else if(c<27)switch(a){case o.MODE_NUMBER:return 12;case o.MODE_ALPHA_NUM:return 11;case o.MODE_8BIT_BYTE:return 16;case o.MODE_KANJI:return 10;default:throw Error("mode:"+a);}else if(c<41)switch(a){case o.MODE_NUMBER:return 14;
case o.MODE_ALPHA_NUM:return 13;case o.MODE_8BIT_BYTE:return 16;case o.MODE_KANJI:return 12;default:throw Error("mode:"+a);}else throw Error("type:"+c);},getLostPoint:function(a){for(var c=a.getModuleCount(),d=0,b=0;b<c;b++)for(var e=0;e<c;e++){for(var f=0,h=a.isDark(b,e),g=-1;g<=1;g++)if(!(b+g<0||c<=b+g))for(var k=-1;k<=1;k++)e+k<0||c<=e+k||g==0&&k==0||h==a.isDark(b+g,e+k)&&f++;if(f>5)d+=3+f-5}for(b=0;b<c-1;b++)for(e=0;e<c-1;e++){f=0;a.isDark(b,e)&&f++;a.isDark(b+1,e)&&f++;a.isDark(b,e+1)&&f++;a.isDark(b+
1,e+1)&&f++;if(f==0||f==4)d+=3}for(b=0;b<c;b++)for(e=0;e<c-6;e++)if(a.isDark(b,e)&&!a.isDark(b,e+1)&&a.isDark(b,e+2)&&a.isDark(b,e+3)&&a.isDark(b,e+4)&&!a.isDark(b,e+5)&&a.isDark(b,e+6))d+=40;for(e=0;e<c;e++)for(b=0;b<c-6;b++)if(a.isDark(b,e)&&!a.isDark(b+1,e)&&a.isDark(b+2,e)&&a.isDark(b+3,e)&&a.isDark(b+4,e)&&!a.isDark(b+5,e)&&a.isDark(b+6,e))d+=40;for(e=f=0;e<c;e++)for(b=0;b<c;b++)a.isDark(b,e)&&f++;d+=Math.abs(100*f/c/c-50)/5*10;return d}},m={glog:function(a){if(a<1)throw Error("glog("+a+")");
return m.LOG_TABLE[a]},gexp:function(a){for(;a<0;)a+=255;for(;a>=256;)a-=255;return m.EXP_TABLE[a]},EXP_TABLE:Array(256),LOG_TABLE:Array(256)},n=0;n<8;n++)m.EXP_TABLE[n]=1<<n;for(n=8;n<256;n++)m.EXP_TABLE[n]=m.EXP_TABLE[n-4]^m.EXP_TABLE[n-5]^m.EXP_TABLE[n-6]^m.EXP_TABLE[n-8];for(n=0;n<255;n++)m.LOG_TABLE[m.EXP_TABLE[n]]=n;t.prototype={get:function(a){return this.num[a]},getLength:function(){return this.num.length},multiply:function(a){for(var c=Array(this.getLength()+a.getLength()-1),d=0;d<this.getLength();d++)for(var b=
0;b<a.getLength();b++)c[d+b]^=m.gexp(m.glog(this.get(d))+m.glog(a.get(b)));return new t(c,0)},mod:function(a){if(this.getLength()-a.getLength()<0)return this;for(var c=m.glog(this.get(0))-m.glog(a.get(0)),d=Array(this.getLength()),b=0;b<this.getLength();b++)d[b]=this.get(b);for(b=0;b<a.getLength();b++)d[b]^=m.gexp(m.glog(a.get(b))+c);return(new t(d,0)).mod(a)}};q.RS_BLOCK_TABLE=[[1,26,19],[1,26,16],[1,26,13],[1,26,9],[1,44,34],[1,44,28],[1,44,22],[1,44,16],[1,70,55],[1,70,44],[2,35,17],[2,35,13],
[1,100,80],[2,50,32],[2,50,24],[4,25,9],[1,134,108],[2,67,43],[2,33,15,2,34,16],[2,33,11,2,34,12],[2,86,68],[4,43,27],[4,43,19],[4,43,15],[2,98,78],[4,49,31],[2,32,14,4,33,15],[4,39,13,1,40,14],[2,121,97],[2,60,38,2,61,39],[4,40,18,2,41,19],[4,40,14,2,41,15],[2,146,116],[3,58,36,2,59,37],[4,36,16,4,37,17],[4,36,12,4,37,13],[2,86,68,2,87,69],[4,69,43,1,70,44],[6,43,19,2,44,20],[6,43,15,2,44,16],[4,101,81],[1,80,50,4,81,51],[4,50,22,4,51,23],[3,36,12,8,37,13],[2,116,92,2,117,93],[6,58,36,2,59,37],[4,
46,20,6,47,21],[7,42,14,4,43,15],[4,133,107],[8,59,37,1,60,38],[8,44,20,4,45,21],[12,33,11,4,34,12],[3,145,115,1,146,116],[4,64,40,5,65,41],[11,36,16,5,37,17],[11,36,12,5,37,13],[5,109,87,1,110,88],[5,65,41,5,66,42],[5,54,24,7,55,25],[11,36,12],[5,122,98,1,123,99],[7,73,45,3,74,46],[15,43,19,2,44,20],[3,45,15,13,46,16],[1,135,107,5,136,108],[10,74,46,1,75,47],[1,50,22,15,51,23],[2,42,14,17,43,15],[5,150,120,1,151,121],[9,69,43,4,70,44],[17,50,22,1,51,23],[2,42,14,19,43,15],[3,141,113,4,142,114],[3,
70,44,11,71,45],[17,47,21,4,48,22],[9,39,13,16,40,14],[3,135,107,5,136,108],[3,67,41,13,68,42],[15,54,24,5,55,25],[15,43,15,10,44,16],[4,144,116,4,145,117],[17,68,42],[17,50,22,6,51,23],[19,46,16,6,47,17],[2,139,111,7,140,112],[17,74,46],[7,54,24,16,55,25],[34,37,13],[4,151,121,5,152,122],[4,75,47,14,76,48],[11,54,24,14,55,25],[16,45,15,14,46,16],[6,147,117,4,148,118],[6,73,45,14,74,46],[11,54,24,16,55,25],[30,46,16,2,47,17],[8,132,106,4,133,107],[8,75,47,13,76,48],[7,54,24,22,55,25],[22,45,15,13,
46,16],[10,142,114,2,143,115],[19,74,46,4,75,47],[28,50,22,6,51,23],[33,46,16,4,47,17],[8,152,122,4,153,123],[22,73,45,3,74,46],[8,53,23,26,54,24],[12,45,15,28,46,16],[3,147,117,10,148,118],[3,73,45,23,74,46],[4,54,24,31,55,25],[11,45,15,31,46,16],[7,146,116,7,147,117],[21,73,45,7,74,46],[1,53,23,37,54,24],[19,45,15,26,46,16],[5,145,115,10,146,116],[19,75,47,10,76,48],[15,54,24,25,55,25],[23,45,15,25,46,16],[13,145,115,3,146,116],[2,74,46,29,75,47],[42,54,24,1,55,25],[23,45,15,28,46,16],[17,145,115],
[10,74,46,23,75,47],[10,54,24,35,55,25],[19,45,15,35,46,16],[17,145,115,1,146,116],[14,74,46,21,75,47],[29,54,24,19,55,25],[11,45,15,46,46,16],[13,145,115,6,146,116],[14,74,46,23,75,47],[44,54,24,7,55,25],[59,46,16,1,47,17],[12,151,121,7,152,122],[12,75,47,26,76,48],[39,54,24,14,55,25],[22,45,15,41,46,16],[6,151,121,14,152,122],[6,75,47,34,76,48],[46,54,24,10,55,25],[2,45,15,64,46,16],[17,152,122,4,153,123],[29,74,46,14,75,47],[49,54,24,10,55,25],[24,45,15,46,46,16],[4,152,122,18,153,123],[13,74,
46,32,75,47],[48,54,24,14,55,25],[42,45,15,32,46,16],[20,147,117,4,148,118],[40,75,47,7,76,48],[43,54,24,22,55,25],[10,45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]];q.getRSBlocks=function(a,c){var d=q.getRsBlockTable(a,c);if(d==undefined)throw Error("bad rs block @ typeNumber:"+a+"/errorCorrectLevel:"+c);for(var b=d.length/3,e=[],f=0;f<b;f++)for(var h=d[f*3+0],g=d[f*3+1],k=d[f*3+2],r=0;r<h;r++)e.push(new q(g,k));return e};q.getRsBlockTable=function(a,
c){switch(c){case v.L:return q.RS_BLOCK_TABLE[(a-1)*4+0];case v.M:return q.RS_BLOCK_TABLE[(a-1)*4+1];case v.Q:return q.RS_BLOCK_TABLE[(a-1)*4+2];case v.H:return q.RS_BLOCK_TABLE[(a-1)*4+3];default:return}};w.prototype={get:function(a){return(this.buffer[Math.floor(a/8)]>>>7-a%8&1)==1},put:function(a,c){for(var d=0;d<c;d++)this.putBit((a>>>c-d-1&1)==1)},getLengthInBits:function(){return this.length},putBit:function(a){var c=Math.floor(this.length/8);this.buffer.length<=c&&this.buffer.push(0);if(a)this.buffer[c]|=
128>>>this.length%8;this.length++}};if(typeof l==="string")l={text:l};l=u.extend({},{render:"canvas",width:256,height:256,typeNumber:-1,correctLevel:v.H},l);return this.each(function(){var a;if(l.render=="canvas"){a=new p(l.typeNumber,l.correctLevel);a.addData(l.text);a.make();var c=document.createElement("canvas");c.width=l.width;c.height=l.height;for(var d=c.getContext("2d"),b=l.width/a.getModuleCount(),e=l.height/a.getModuleCount(),f=0;f<a.getModuleCount();f++)for(var h=0;h<a.getModuleCount();h++){d.fillStyle=
a.isDark(f,h)?"#000000":"#ffffff";d.fillRect(h*b,f*e,b,e)}a=c}else{a=new p(l.typeNumber,l.correctLevel);a.addData(l.text);a.make();c=u("<table></table>").css("width",l.width+"px").css("height",l.height+"px").css("border","0px").css("border-collapse","collapse").css("background-color","#ffffff");d=100/a.getModuleCount();b=100/a.getModuleCount();for(e=0;e<a.getModuleCount();e++){f=u("<tr></tr>").css("height",b+"%").appendTo(c);for(h=0;h<a.getModuleCount();h++)u("<td></td>").css("width",d+"%").css("background-color",
a.isDark(e,h)?"#000000":"#ffffff").appendTo(f)}a=c}jQuery(a).appendTo(this)})}})(jQuery);

(function($){

/*
* requestAniFrame() shim from the lovely and talented Paul Irish
*   http://paulirish.com/2011/requestanimationframe-for-smart-animating/
*/
window.requestAnimFrame = (function(){
    return  window.requestAnimationFrame       || 
          window.webkitRequestAnimationFrame || 
          window.mozRequestAnimationFrame    || 
          window.oRequestAnimationFrame      || 
          window.msRequestAnimationFrame     || 
          function(/* function */ callback, /* DOMElement */ element){
            window.setTimeout(callback, 1000 / 60);
          };
})();

window.ql_canvas = function(options){

  var settings = $.extend({}, ql_canvas.defaultOptions, options),
      cavnas, ctx, $canvas;

  $canvas = $('<canvas/>', {
              id: settings.name,
              width: settings.width,
              height: settings.height,
              style: settings.style || ""
            }).appendTo( settings.target );

  canvas = $canvas[0];
  canvas.height = settings.height;
  canvas.width = settings.width;

  ctx = canvas.getContext('2d');

  function chain(){
    var orig_args = Array.prototype.slice.call(arguments);

    return function(){
      var args = orig_args.concat( Array.prototype.slice.call(arguments) ),
          length = args.length;

      for( var i = 0; i < args.length; i += 1 ){
        if( $.isFunction( args[i] ) === true) args[i].call(this, ctx, $canvas, settings);
      }
    };
  }

  return {
    'init': chain( settings.init ),

    'chain': chain(),

    '$': $canvas,

    'ctx': ctx,

    'settings': settings,

    'clear': function( width, height){
      ctx.clearRect(0,0, width || settings.width, height || settings.height);
    },

    'resize': function(width, height, callback){
      canvas.width = this.settings.width = width || settings.width;
      canvas.height = this.settings.height = height || settings.height;

      if( $.isFunction( callback )) callback.call(this, ctx, $canvas, settings);
    }
  };
};

ql_canvas.defaultOptions = {
  name: "ql_canvas"+$.now(),
  target: $('body'),
  width: 200,
  height: 200,
  style: false,
  init: false
};

})(jQuery);

// tipsy, facebook style tooltips for jquery
// version 1.0.0a
// (c) 2008-2010 jason frame [jason@onehackoranother.com]
// released under the MIT license

(function($) {
    
    function maybeCall(thing, ctx) {
        return (typeof thing == 'function') ? (thing.call(ctx)) : thing;
    };
    
    function Tipsy(element, options) {
        this.$element = $(element);
        this.options = options;
        this.enabled = true;
        this.fixTitle();
    };
    
    Tipsy.prototype = {
        show: function() {
            var title = this.getTitle();
            if (title && this.enabled) {
                var $tip = this.tip();
                
                $tip.find('.tipsy-inner')[this.options.html ? 'html' : 'text'](title);
                $tip[0].className = 'tipsy'; // reset classname in case of dynamic gravity
                $tip.remove().css({top: 0, left: 0, visibility: 'hidden', display: 'block'}).prependTo(document.body);
                
                var pos = $.extend({}, this.$element.offset(), {
                    width: this.$element[0].offsetWidth,
                    height: this.$element[0].offsetHeight
                });
                
                var actualWidth = $tip[0].offsetWidth,
                    actualHeight = $tip[0].offsetHeight,
                    gravity = maybeCall(this.options.gravity, this.$element[0]);
                
                var tp;
                switch (gravity.charAt(0)) {
                    case 'n':
                        tp = {top: pos.top + pos.height + this.options.offset, left: pos.left + pos.width / 2 - actualWidth / 2};
                        break;
                    case 's':
                        tp = {top: pos.top - actualHeight - this.options.offset, left: pos.left + pos.width / 2 - actualWidth / 2};
                        break;
                    case 'e':
                        tp = {top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth - this.options.offset};
                        break;
                    case 'w':
                        tp = {top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width + this.options.offset};
                        break;
                }
                
                if (gravity.length == 2) {
                    if (gravity.charAt(1) == 'w') {
                        tp.left = pos.left + pos.width / 2 - 15;
                    } else {
                        tp.left = pos.left + pos.width / 2 - actualWidth + 15;
                    }
                }
                
                $tip.css(tp).addClass('tipsy-' + gravity);
                $tip.find('.tipsy-arrow')[0].className = 'tipsy-arrow tipsy-arrow-' + gravity.charAt(0);
                if (this.options.className) {
                    $tip.addClass(maybeCall(this.options.className, this.$element[0]));
                }
                
                if (this.options.fade) {
                    $tip.stop().css({opacity: 0, display: 'block', visibility: 'visible'}).animate({opacity: this.options.opacity});
                } else {
                    $tip.css({visibility: 'visible', opacity: this.options.opacity});
                }
            }
        },
        
        hide: function() {
            if (this.options.fade) {
                this.tip().stop().fadeOut(function() { $(this).remove(); });
            } else {
                this.tip().remove();
            }
        },
        
        fixTitle: function() {
            var $e = this.$element;
            if ($e.attr('title') || typeof($e.attr('original-title')) != 'string') {
                $e.attr('original-title', $e.attr('title') || '').removeAttr('title');
            }
        },
        
        getTitle: function() {
            var title, $e = this.$element, o = this.options;
            this.fixTitle();
            var title, o = this.options;
            if (typeof o.title == 'string') {
                title = $e.attr(o.title == 'title' ? 'original-title' : o.title);
            } else if (typeof o.title == 'function') {
                title = o.title.call($e[0]);
            }
            title = ('' + title).replace(/(^\s*|\s*$)/, "");
            return title || o.fallback;
        },
        
        tip: function() {
            if (!this.$tip) {
                this.$tip = $('<div class="tipsy"></div>').html('<div class="tipsy-arrow"></div><div class="tipsy-inner"></div>');
            }
            return this.$tip;
        },
        
        validate: function() {
            if (!this.$element[0].parentNode) {
                this.hide();
                this.$element = null;
                this.options = null;
            }
        },
        
        enable: function() { this.enabled = true; },
        disable: function() { this.enabled = false; },
        toggleEnabled: function() { this.enabled = !this.enabled; }
    };
    
    $.fn.tipsy = function(options) {
        
        if (options === true) {
            return this.data('tipsy');
        } else if (typeof options == 'string') {
            var tipsy = this.data('tipsy');
            if (tipsy) tipsy[options]();
            return this;
        }
        
        options = $.extend({}, $.fn.tipsy.defaults, options);
        
        function get(ele) {
            var tipsy = $.data(ele, 'tipsy');
            if (!tipsy) {
                tipsy = new Tipsy(ele, $.fn.tipsy.elementOptions(ele, options));
                $.data(ele, 'tipsy', tipsy);
            }
            return tipsy;
        }
        
        function enter() {
            var tipsy = get(this);
            tipsy.hoverState = 'in';
            if (options.delayIn == 0) {
                tipsy.show();
            } else {
                tipsy.fixTitle();
                setTimeout(function() { if (tipsy.hoverState == 'in') tipsy.show(); }, options.delayIn);
            }
        };
        
        function leave() {
            var tipsy = get(this);
            tipsy.hoverState = 'out';
            if (options.delayOut == 0) {
                tipsy.hide();
            } else {
                setTimeout(function() { if (tipsy.hoverState == 'out') tipsy.hide(); }, options.delayOut);
            }
        };
        
        if (!options.live) this.each(function() { get(this); });
        
        if (options.trigger != 'manual') {
            var binder   = options.live ? 'live' : 'bind',
                eventIn  = options.trigger == 'hover' ? 'mouseenter' : 'focus',
                eventOut = options.trigger == 'hover' ? 'mouseleave' : 'blur';
            this[binder](eventIn, enter)[binder](eventOut, leave);
        }
        
        return this;
        
    };
    
    $.fn.tipsy.defaults = {
        className: null,
        delayIn: 0,
        delayOut: 0,
        fade: false,
        fallback: '',
        gravity: 'n',
        html: false,
        live: false,
        offset: 0,
        opacity: 0.8,
        title: 'title',
        trigger: 'hover'
    };
    
    // Overwrite this method to provide options on a per-element basis.
    // For example, you could store the gravity in a 'tipsy-gravity' attribute:
    // return $.extend({}, options, {gravity: $(ele).attr('tipsy-gravity') || 'n' });
    // (remember - do not modify 'options' in place!)
    $.fn.tipsy.elementOptions = function(ele, options) {
        return $.metadata ? $.extend({}, options, $(ele).metadata()) : options;
    };
    
    $.fn.tipsy.autoNS = function() {
        return $(this).offset().top > ($(document).scrollTop() + $(window).height() / 2) ? 's' : 'n';
    };
    
    $.fn.tipsy.autoWE = function() {
        return $(this).offset().left > ($(document).scrollLeft() + $(window).width() / 2) ? 'e' : 'w';
    };
    
    /**
     * yields a closure of the supplied parameters, producing a function that takes
     * no arguments and is suitable for use as an autogravity function like so:
     *
     * @param margin (int) - distance from the viewable region edge that an
     *        element should be before setting its tooltip's gravity to be away
     *        from that edge.
     * @param prefer (string, e.g. 'n', 'sw', 'w') - the direction to prefer
     *        if there are no viewable region edges effecting the tooltip's
     *        gravity. It will try to vary from this minimally, for example,
     *        if 'sw' is preferred and an element is near the right viewable 
     *        region edge, but not the top edge, it will set the gravity for
     *        that element's tooltip to be 'se', preserving the southern
     *        component.
     */
     $.fn.tipsy.autoBounds = function(margin, prefer) {
		return function() {
			var dir = {ns: prefer[0], ew: (prefer.length > 1 ? prefer[1] : false)},
			    boundTop = $(document).scrollTop() + margin,
			    boundLeft = $(document).scrollLeft() + margin,
			    $this = $(this);

			if ($this.offset().top < boundTop) dir.ns = 'n';
			if ($this.offset().left < boundLeft) dir.ew = 'w';
			if ($(window).width() + $(document).scrollLeft() - $this.offset().left < margin) dir.ew = 'e';
			if ($(window).height() + $(document).scrollTop() - $this.offset().top < margin) dir.ns = 's';

			return dir.ns + (dir.ew ? dir.ew : '');
		}
	};
    
})(jQuery);