/*
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,-100]; //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 = 200;	// 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,imagethumb,caption,type){
	//Only do this if the person wants it
	if(document.perpage.mousepreview.options[document.perpage.mousepreview.selectedIndex].value=="yes")
	{
		var oImg = new Image();
		oImg.src = imagethumb;
		if (oImg.width > oImg.height)
		{
			imgheight = 300 * (oImg.height / oImg.width);	
			imgwidth = 300;
		}
		else
		{
			imgwidth = 300 * (oImg.width / oImg.height);	
			imgheight = 300;	
		}

		document.onmousemove=followmouse;
		newHTML = '<div style="padding: 5px; background-color: #FFF; border: 1px solid #888; width: 310px;">';
	
		if (type != "film")	
			newHTML = newHTML + '<div align="center"><img src="' + imagename + '" border="0" width="' +imgwidth + '" height="' +imgheight + '"></div>';

		newHTML = newHTML + '<p style="font-size: 10px;"><table><tr><td width="70px"><b>CAPTION :</b></td><td>' + caption + '</td></table></p>';
		newHTML = newHTML + '</div>';

		gettrailobjnostyle().innerHTML = newHTML;

		gettrailobj().visibility="visible";
	}
}


function hidetrail(){
	//if(document.hoverForm.showComp.selectedIndex==0)
	{
		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)

//alert(docheight);
	//if (document.all){
	//	gettrailobjnostyle().innerHTML = 'A = ' + truebody().scrollHeight + '<br>B = ' + truebody().clientHeight;
	//} else {
	//	gettrailobjnostyle().innerHTML = 'C = ' + document.body.offsetHeight + '<br>D = ' + window.innerHeight;
	//}

	if (typeof e != "undefined"){
		if (docwidth - e.pageX < 350){
			xcoord = e.pageX - xcoord - 330; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < (currentimageheight + 110)){
			if ( document.body ){
				scrollTop = Math.max(truebody().scrollTop, document.body.scrollTop);
			} else {
				scrollTop = truebody().scrollTop;
			}
			ycoord += e.pageY - Math.max(0,(110 + currentimageheight + e.pageY - docheight - scrollTop));
		} else {
			ycoord += e.pageY;
		}

	} else if (typeof window.event != "undefined"){

		if (docwidth - event.clientX < 350){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - 330; // 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;
		}
	}

	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"

}