/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact
*/

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 currentimageheight = 450;	// maximum image size.

if (document.getElementById || document.all){
	document.write('<div id="trailimageid">');
	document.write('</div>');
}

function gettrailobj(){
if (document.getElementById)
return document.getElementById("trailimageid").style
else if (document.all)
return document.all.trailimagid.style
}

function gettrailobjnostyle(){
if (document.getElementById)
return document.getElementById("trailimageid")
else if (document.all)
return document.all.trailimagid
}


function truebody(){
return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function showtrail(imagename, imagenum, caption, showthumb, imageid){
	if (imageid > 0) {
		var width = getImageWidth(imageid);
		var height = getImageHeight(imageid);
	}
	document.onmousemove=followmouse;
	newHTML = '<div style="padding:3px 3px 15px 3px;background-color:#D9D9D9;border:1px solid #888888;text-align:center;width:547px;">';
	if (showthumb > 0){
		newHTML = newHTML + '<div align="center" class="imglabel" style="padding:2px;"><img src="' + imagename + '" border="0" /></div>';
	}
	newHTML = newHTML + '<div class="imglabel2" id="hoverText" style="text-align:center;"><strong>';
	newHTML = newHTML + imagenum + '</strong><div style="text-align:center;">';
	newHTML = newHTML + '' + unescape(caption) + '';
	//newHTML = newHTML + '' + caption + '';
	newHTML = newHTML + '</div></div></div>';
	gettrailobjnostyle().innerHTML = newHTML;
	gettrailobj().visibility="visible";
}


function hidetrail(){
	gettrailobj().visibility="hidden";
	document.onmousemove="";
	gettrailobj().left="-500px";
}

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(document.body.offsetHeight, window.innerHeight)

	if (typeof e != "undefined"){
		if (docwidth - e.pageX < 400){
			xcoord = e.pageX - xcoord - 515; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < (currentimageheight + 110)){
		      ycoord += e.pageY - Math.max(0,(110 + currentimageheight + e.pageY - docheight - truebody().scrollTop));
		} else {
			ycoord += e.pageY;
		}

	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < 400){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - 515; // Move to the left side of the cursor
		} else {
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (docheight - event.clientY < (currentimageheight + 110)){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(110 + currentimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}
	//if(ycoord<0){ycoord=0;}

	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15
	var docheight=document.all? Math.max(truebody().scrollHeight, truebody().clientHeight) : Math.max(document.body.offsetHeight, window.innerHeight)

	if (1==2) {
          gettrailobj().left=xcoord+"px"
	  gettrailobj().top=ycoord+"px"
        } else {
          if (document.all) {
            w_offset = 386;
          } else {
            w_offset = 379
          }
          gettrailobj().left=(docwidth/2)-w_offset+"px"
          gettrailobj().top="108px"
        }

}

var ns4 = 0;
var op5 = 0;

function getImageWidth(myImage) {
	var x, obj;
	if (document.layers) {
		var img = getImage(myImage);
		return img.width;
	} else {
		return getElementWidth(myImage);
	}
	return -1;
}

function getImageHeight(myImage) {
	var y, obj;
	if (document.layers) {
		var img = getImage(myImage);
		return img.height;
	} else {
		return getElementHeight(myImage);
	}
	return -1;
}

function getElementHeight(Elem) {
	if (ns4) {
		var elem = getObjNN4(document, Elem);
		return elem.clip.height;
	} else {
  if(document.getElementById) {
  	var elem = document.getElementById(Elem);
  } else if (document.all){
  	var elem = document.all[Elem];
  }
  if (op5) {
  	xPos = elem.style.pixelHeight;
  } else {
  	xPos = elem.offsetHeight;
  }
  return xPos;
	}
}

function getElementWidth(Elem) {
	if (ns4) {
		var elem = getObjNN4(document, Elem);
		return elem.clip.width;
	} else {
  if(document.getElementById) {
  	var elem = document.getElementById(Elem);
  } else if (document.all){
  	var elem = document.all[Elem];
  }
  if (op5) {
  	xPos = elem.style.pixelWidth;
  } else {
  	xPos = elem.offsetWidth;
  }
  return xPos;
	}
}