/*
  2Simple Image Trail script- By JavaScriptKit.com
  3Visit http://www.javascriptkit.com for this script and more
  4This notice must stay intact
  5*/
  
  var offsetfrommouse=[15,25]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
  var displayduration=0; //duration in seconds image should remain visible. 0 for always.
  
  var defaultimageheight = 40; // maximum image size.
  var defaultimagewidth = 40; // maximum image size.
  
  var timer;
  
  function gettrailobj(){
  if (document.getElementById)
  return document.getElementById("preview_div").style
  }
  
  function gettrailobjnostyle(){
  if (document.getElementById)
  return document.getElementById("preview_div")
  }
  
  
  function truebody(){
  return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
  }
  
  
  function hidetrail(){
   gettrailobj().display= "none";
   document.onmousemove=""
   gettrailobj().left="-500px"
   clearTimeout(timer);
  }
  
  function showtrail(imagename,title,width,height){
   i = imagename
   t = title
   w = width
   h = height
   timer = setTimeout("show('"+i+"',t,w,h);",200);
  }
  function show(imagename,title,width,height){
  
   var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth - offsetfrommouse[0]
   var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)
  
   if( (navigator.userAgent.indexOf("Konqueror")==-1 || navigator.userAgent.indexOf("Firefox")!=-1 || (navigator.userAgent.indexOf("Opera")==-1 && navigator.appVersion.indexOf("MSIE")!=-1)) && (docwidth>650 && docheight>500)) {
	 ( width == 0 ) ? width = defaultimagewidth: '';
	 ( height == 0 ) ? height = defaultimageheight: '';
	
	 width+=30
	 height+=55
	 defaultimageheight = height
	 defaultimagewidth = width
	
	 document.onmousemove=followmouse;
	 document.onmouseover=followmouse;
	
	 newHTML = '<div class="preview">';// style="width:'+ width +'; height: '+ height +'">';
	 newHTML = newHTML + '<h2>'+ title + '</h2>';
	 newHTML = newHTML + '<img src="' + imagename + '" border="0" class="preview_img"/>';
	 newHTML = newHTML + '</div>';
	
	 gettrailobjnostyle().innerHTML = newHTML;
	 gettrailobj().display="block";
	 }
  }
  
  function followmouse(e){
  
   var xcoord=offsetfrommouse[0]
   var ycoord=offsetfrommouse[1]
  
   var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15
   var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)
  
   if (typeof e != "undefined"){
	   if (docwidth - e.pageX < defaultimagewidth + 2*offsetfrommouse[0]){
		 xcoord = e.pageX - xcoord - defaultimagewidth; // Move to the left side of the cursor
	   } else {
		 xcoord += e.pageX;
	   }
	   if (docheight - e.pageY < defaultimageheight + 2*offsetfrommouse[1]){
		 ycoord += e.pageY - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + e.pageY - docheight - truebody().scrollTop));
	   } else {
		 ycoord += e.pageY;
	   }
	  
	   } else if (typeof window.event != "undefined"){
	   if (docwidth - event.clientX < defaultimagewidth + 2*offsetfrommouse[0]){
		 xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor
	   } else {
		 xcoord += truebody().scrollLeft+event.clientX
	   }
	   if (docheight - event.clientY < (defaultimageheight + 2*offsetfrommouse[1])){
		 ycoord += event.clientY + truebody().scrollTop - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + event.clientY - docheight));
	   } else {
		 ycoord += truebody().scrollTop + event.clientY;
	   }
	 }
	 gettrailobj().left=xcoord+"px"
	 gettrailobj().top=ycoord+"px"
  }
  
  
  var t_id = setInterval(animate,20);
  var pos=0;
  var dir=2;
  var len=0;
  
  function animate()
  {
	var elem = document.getElementById('progress');
	if(elem != null) {
	if (pos==0) len += dir;
	if (len>32 || pos>79) pos += dir;
	if (pos>79) len -= dir;
	if (pos>79 && len==0) pos=0;
	  elem.style.left = pos;
	  elem.style.width = len;
	  }
  }