text: /**
  * DD_belatedPNG: Adds IE6 support: PNG images for CSS background-image and HTML <IMG/>.
  * Author: Drew Diller
  * Email: drew.diller@gmail.com
  * URL: http://www.dillerdesign.com/experiment/DD_belatedPNG/
  * Version: 0.0.7a
  * Licensed under the MIT License: http://dillerdesign.com/experiment/DD_belatedPNG/#license
  *
  * Example usage:
  * DD_belatedPNG.fix('.png_bg'); // argument is a CSS selector
  * DD_belatedPNG.fixPng( someNode ); // argument is an HTMLDomElement
  **/
  
  /*
  PLEASE READ:
  Absolutely everything in this script is SILLY.  I know this.  IE's rendering of certain pixels doesn't make sense, so neither does this code!
  */
  var DD_belatedPNG = {
  
      ns: 'DD_belatedPNG',
      imgSize: {},
      
      createVmlNameSpace: function() { /* enable VML */
          if (document.namespaces && !document.namespaces[this.ns]) {
            document.namespaces.add(this.ns, 'urn:schemas-microsoft-com:vml');
          }
          if (window.attachEvent) {
              window.attachEvent('onbeforeunload', function() {
                  DD_belatedPNG = null;
              });
          }
      },
      
      createVmlStyleSheet: function() { /* style VML, enable behaviors */
          /*
              Just in case lots of other developers have added
  $.extend({fixpng: DD_belatedPNG.fix});
  $.extend($.fn, {
      fixpng: function() {
          $.each(this, function(){
              DD_belatedPNG.fix(this);
          });
      }
  });
              lots of other stylesheets using document.createStyleSheet
              and hit the 31-limit mark, let's not use that method!
              further reading: http://msdn.microsoft.com/en-us/library/ms531194(VS.85).aspx
          */
          var style = document.createElement('style');
          document.documentElement.firstChild.insertBefore(style, document.documentElement.firstChild.firstChild);
          var styleSheet = style.styleSheet;
          styleSheet.addRule(this.ns + '\\:*', '{behavior:url(#default#VML)}');
          styleSheet.addRule(this.ns + '\\:shape', 'position:absolute;');
          styleSheet.addRule('img.' + this.ns + '_sizeFinder', 'behavior:none; border:none; position:absolute; z-index:-1; top:-10000px; visibility:hidden;'); /* large negative top value for avoiding vertical scrollbars for large images, suggested by James O'Brien, http://www.thanatopsic.org/hendrik/ */
          this.styleSheet = styleSheet;
      },
      
      readPropertyChange: function() {
          var el = event.srcElement;
          if (event.propertyName.search('background') != -1 || event.propertyName.search('border') != -1) {
              DD_belatedPNG.applyVML(el);
          }
          if (event.propertyName == 'style.display') {
              var display = (el.currentStyle.display == 'none') ? 'none' : 'block';
              for (var v in el.vml) {
                  el.vml[v].shape.style.display = display;
              }
          }
          if (event.propertyName.search('filter') != -1) {
              DD_belatedPNG.vmlOpacity(el);
          }
      },
      
      vmlOpacity: function(el) {
          if (el.currentStyle.filter.search('lpha') != -1) {
              var trans = el.currentStyle.filter;
              trans = parseInt(trans.substring(trans.lastIndexOf('=')+1, trans.lastIndexOf(')')), 10)/100;
              el.vml.color.shape.style.filter = el.currentStyle.filter; /* complete guesswork */
              el.vml.image.fill.opacity = trans; /* complete guesswork */
          }
      },
      
      handlePseudoHover: function(el) {
          setTimeout(function() { /* wouldn't work as intended without setTimeout */
              DD_belatedPNG.applyVML(el);
          }, 1);
      },
      
      /**
      * This is the method to use in a document.
      * @param {String} selector - REQUIRED - a CSS selector, such as '#doc .container'
      **/
      fix: function(selector) {
          var selectors = selector.split(','); /* multiple selectors supported, no need for multiple calls to this anymore */
          for (var i=0; i<selectors.length; i++) {
              this.styleSheet.addRule(selectors[i], 'behavior:expression(DD_belatedPNG.fixPng(this))'); /* seems to execute the function without adding it to the stylesheet - interesting... */
          }
      },
      
      applyVML: function(el) {
          el.runtimeStyle.cssText = '';
          this.vmlFill(el);
          this.vmlOffsets(el);
          this.vmlOpacity(el);
          if (el.isImg) {
              this.copyImageBorders(el);
          }
      },
      
      attachHandlers: function(el) {
          var self = this;
          var handlers = {resize: 'vmlOffsets', move: 'vmlOffsets'};
          if (el.nodeName == 'A') {
              var moreForAs = {mouseleave: 'handlePseudoHover', mouseenter: 'handlePseudoHover', focus: 'handlePseudoHover', blur: 'handlePseudoHover'};
              for (var a in moreForAs) {
                  handlers[a] = moreForAs[a];
              }
          }
          for (var h in handlers) {
              el.attachEvent('on' + h, function() {
                  self[handlers[h]](el);
              });
          }
          el.attachEvent('onpropertychange', this.readPropertyChange);
      },
      
      giveLayout: function(el) {
          el.style.zoom = 1;
          if (el.currentStyle.position == 'static') {
              el.style.position = 'relative';
          }
      },
      
      copyImageBorders: function(el) {
          var styles = {'borderStyle':true, 'borderWidth':true, 'borderColor':true};
          for (var s in styles) {
              el.vml.color.shape.style[s] = el.currentStyle[s];
          }
      },
      
      vmlFill: function(el) {
          if (!el.currentStyle) {
              return;
          } else {
              var elStyle = el.currentStyle;
          }
          for (var v in el.vml) {
              el.vml[v].shape.style.zIndex = elStyle.zIndex;
          }
          el.runtimeStyle.backgroundColor = '';
          el.runtimeStyle.backgroundImage = '';
          var noColor = (elStyle.backgroundColor == 'transparent');
          var noImg = true;
          if (elStyle.backgroundImage != 'none' || el.isImg) {
              if (!el.isImg) {
                  el.vmlBg = elStyle.backgroundImage;
                  el.vmlBg = el.vmlBg.substr(5, el.vmlBg.lastIndexOf('")')-5);
              }
              else {
                  el.vmlBg = el.src;
              }
              var lib = this;
              if (!lib.imgSize[el.vmlBg]) { /* determine size of loaded image */
                  var img = document.createElement('img');
                  lib.imgSize[el.vmlBg] = img;
                  img.className = lib.ns + '_sizeFinder';
                  img.runtimeStyle.cssText = 'behavior:none; position:absolute; left:-10000px; top:-10000px; border:none;'; /* make sure to set behavior to none to prevent accidental matching of the helper elements! */
                  img.attachEvent('onload', function() {
                      this.width = this.offsetWidth; /* weird cache-busting requirement! */
                      this.height = this.offsetHeight;
                      lib.vmlOffsets(el);
                  });
                  img.src = el.vmlBg;
                  img.removeAttribute('width');
                  img.removeAttribute('height');
                  document.body.insertBefore(img, document.body.firstChild);
              }
              el.vml.image.fill.src = el.vmlBg;
              noImg = false;
          }
          el.vml.image.fill.on = !noImg;
          el.vml.image.fill.color = 'none';
          el.vml.color.shape.style.backgroundColor = elStyle.backgroundColor;
          el.runtimeStyle.backgroundImage = 'none';
          el.runtimeStyle.backgroundColor = 'transparent';
      },
      
      /* IE can't figure out what do when the offsetLeft and the clientLeft add up to 1, and the VML ends up getting fuzzy... so we have to push/enlarge things by 1 pixel and then clip off the excess */
      vmlOffsets: function(el) {
          var thisStyle = el.currentStyle;
          var size = {'W':el.clientWidth+1, 'H':el.clientHeight+1, 'w':this.imgSize[el.vmlBg].width, 'h':this.imgSize[el.vmlBg].height, 'L':el.offsetLeft, 'T':el.offsetTop, 'bLW':el.clientLeft, 'bTW':el.clientTop};
          var fudge = (size.L + size.bLW == 1) ? 1 : 0;
          
          /* vml shape, left, top, width, height, origin */
          var makeVisible = function(vml, l, t, w, h, o) {
              vml.coordsize = w+','+h;
              vml.coordorigin = o+','+o;
              vml.path = 'm0,0l'+w+',0l'+w+','+h+'l0,'+h+' xe';
              vml.style.width = w + 'px';
              vml.style.height = h + 'px';
              vml.style.left = l + 'px';
              vml.style.top = t + 'px';
          };
          makeVisible(el.vml.color.shape, (size.L + (el.isImg ? 0 : size.bLW)), (size.T + (el.isImg ? 0 : size.bTW)), (size.W-1), (size.H-1), 0);
          makeVisible(el.vml.image.shape, (size.L + size.bLW), (size.T + size.bTW), (size.W), (size.H), 1);
          
          var bg = {'X':0, 'Y':0};
          var figurePercentage = function(axis, position) {
              var fraction = true;
              switch(position) {
                  case 'left':
                  case 'top':
                      bg[axis] = 0;
                      break;
                  case 'center':
                      bg[axis] = .5;
                      break;
                  case 'right':
                  case 'bottom':
                      bg[axis] = 1;
                      break;
                  default:
                      if (position.search('%') != -1) {
                          bg[axis] = parseInt(position)*.01;
                      }
                      else {
                          fraction = false;
                      }
              }
              var horz = (axis == 'X');
              bg[axis] = Math.ceil(fraction ? ( (size[horz?'W': 'H'] * bg[axis]) - (size[horz?'w': 'h'] * bg[axis]) ) : parseInt(position));
              if (bg[axis] == 0) {
                  bg[axis]++;
              }
          };
          for (var b in bg) {
              figurePercentage(b, thisStyle['backgroundPosition'+b]);
          }
          
          el.vml.image.fill.position = (bg.X/size.W) + ',' + (bg.Y/size.H);
          
          var bgR = thisStyle.backgroundRepeat;
          var dC = {'T':1, 'R':size.W+fudge, 'B':size.H, 'L':1+fudge}; /* these are defaults for repeat of any kind */
          var altC = { 'X': {'b1': 'L', 'b2': 'R', 'd': 'W'}, 'Y': {'b1': 'T', 'b2': 'B', 'd': 'H'} };
          if (bgR != 'repeat') {
              var c = {'T':(bg.Y), 'R':(bg.X+size.w), 'B':(bg.Y+size.h), 'L':(bg.X)}; /* these are defaults for no-repeat - clips down to the image location */
              if (bgR.search('repeat-') != -1) { /* now let's revert to dC for repeat-x or repeat-y */
                  var v = bgR.split('repeat-')[1].toUpperCase();
                  c[altC[v].b1] = 1;
                  c[altC[v].b2] = size[altC[v].d];
              }
              if (c.B > size.H) {
                  c.B = size.H;
              }
              el.vml.image.shape.style.clip = 'rect('+c.T+'px '+(c.R+fudge)+'px '+c.B+'px '+(c.L+fudge)+'px)';
          }
          else {
              el.vml.image.shape.style.clip = 'rect('+dC.T+'px '+dC.R+'px '+dC.B+'px '+dC.L+'px)';
          }
      },
      
      fixPng: function(el) {
          el.style.behavior = 'none';
          if (el.nodeName == 'BODY' || el.nodeName == 'TD' || el.nodeName == 'TR') { /* elements not supported yet */
              return;
          }
          el.isImg = false;
          if (el.nodeName == 'IMG') {
              if(el.src.toLowerCase().search(/\.png$/) != -1) {
                  el.isImg = true;
                  el.style.visibility = 'hidden';
              }
              else {
                  return;
              }
          }
          else if (el.currentStyle.backgroundImage.toLowerCase().search('.png') == -1) {
              return;
          }
          var lib = DD_belatedPNG;
          el.vml = {color: {}, image: {}};
          var els = {shape: {}, fill: {}};
          for (var r in el.vml) {
              for (var e in els) {
                  var nodeStr = lib.ns + ':' + e;
                  el.vml[r][e] = document.createElement(nodeStr);
              }
              el.vml[r].shape.stroked = false;
              el.vml[r].shape.appendChild(el.vml[r].fill);
              el.parentNode.insertBefore(el.vml[r].shape, el);
          }
          el.vml.image.shape.fillcolor = 'none'; /* Don't show blank white shapeangle when waiting for image to load. */
          el.vml.image.fill.type = 'tile'; /* Ze magic!! Makes image show up. */
          el.vml.color.fill.on = false; /* Actually going to apply vml element's style.backgroundColor, so hide the whiteness. */
          
          lib.attachHandlers(el);
          
          lib.giveLayout(el);
          lib.giveLayout(el.offsetParent);
          
          /* set up element */
          lib.applyVML(el);
      }
      
  };
  try {
      document.execCommand("BackgroundImageCache", false, true); /* TredoSoft Multiple IE doesn't like this, so try{} it */
  } catch(r) {}
  DD_belatedPNG.createVmlNameSpace();
  DD_belatedPNG.createVmlStyleSheet();
  DD_belatedPNG.fix('img, .pngfix');
  