//Overlap Image Viewer (March 2nd, 08'): By JavaScript Kit: http://www.javascriptkit.com

var overlapviewer={

   thumbclass: "bril", //Shared css class name to apply efect to
   startopacity: 1, //Opacity of element before mouse moves over it
   endopacity: 1, //Opacity of element when mouse is over it (and showing enlarged image)
   increment: 0.2, //Amount of opacity to increase after each iteration (suggestion: 0.1 or 0.2)
   loadingmsg: "Even geduld...",

   isContained:function(m, e){
      var e=window.event || e
      var c=e.relatedTarget || ((e.type=="mouseover")? e.fromElement : e.toElement)
      while (c && c!=m)try {c=c.parentNode} catch(e){c=m}
      if (c==m)
         return true
      else
         return false
   },

   dim_and_reveal:function(e, t, config){
      var windowsize={w: $(window).width(), h: $(window).height()}
      var scrollpoint={x: e.pageX-e.clientX, y: e.pageY-e.clientY}
      $(t).fadeTo('normal', overlapviewer.endopacity, function(){
         config.$popupdiv.html('<img id="jkpopupimage" src="'+t.getAttribute('targetimage')+'" border="0" />')
         var isimglink=t.childNodes.length==1 && t.firstChild.tagName=="IMG" //see if anchor object is image link
         var $target=(isimglink)? $(t.firstChild) : $(t)
         var targetcoord=$target.offset()
         $('#jkpopupimage').one('load', function(){
            var popupdiv=config.$popupdiv.get(0)
            targetcoord.left=(windowsize.w < targetcoord.left-scrollpoint.x+popupdiv.offsetWidth)? targetcoord.left-popupdiv.offsetWidth+$target.width() : targetcoord.left
            config.$popupdiv.css({left: targetcoord.left, top: targetcoord.top, visibility: 'visible'})
         })
      })
   },

   undim_and_hide:function(e, t, config){
      $(t).fadeTo('normal', overlapviewer.startopacity)
      config.$popupdiv.empty().css({left:0, top:0, visibility: 'hidden'})
   },

   init:function(config){
      $(document).ready(function(){
         config.$thumbnails=$('.'+overlapviewer.thumbclass)
         config.$popupdiv=$('<div id="brimgpopup"></div>').prependTo('body')
         config.$thumbnails.each(function(index){
            $(this).attr('targetimage', this.getAttribute('title')).attr('title', '') //save url to enlarged image in custom 'targetimage' attribute
            $(this).bind('mouseenter', function(e){
               if (!overlapviewer.isContained(config.$popupdiv.get(0), e)) //check if mouse accidently entered pop up div
                  overlapviewer.dim_and_reveal(e, this, config)
            })
            $(this).bind('mouseleave', function(e){
               if (!overlapviewer.isContained(config.$popupdiv.get(0), e))  //check if mouse accidently entered pop up div
                  overlapviewer.undim_and_hide(e, this, config)
            })
         }) //end each loop
         config.$popupdiv.bind('mouseleave', function(e){
            config.$thumbnails.stop().fadeTo('normal', overlapviewer.startopacity)
            config.$popupdiv.empty().css({left:0, top:0, visibility: 'hidden'})
         })
      }) //end document.ready
   }
}

overlapviewer.init({})