var ua = navigator.userAgent.toLowerCase();
var divw=0;
var divh=0;

if (document.getElementById || document.all)
	document.write('<div id="imgtrailer" style="position:absolute;visibility:hidden;"></div>')

function gettrailobject()
	{
	if (document.getElementById)
		return document.getElementById("imgtrailer")
	else if (document.all)
		return document.all.trailimagid
	}

function gettrailobj()
	{
	if (document.getElementById)
		return document.getElementById("imgtrailer").style
	else if (document.all)
		return document.all.trailimagid.style
	}
	
function getPosition(e) {
    e = e || window.event;
    var cursor = {x:0, y:0};
    if (e.pageX || e.pageY) {
        cursor.x = e.pageX;
        cursor.y = e.pageY;
    } 
    else {
        var de = document.documentElement;
        var b = document.body;
        cursor.x = e.clientX + 
            (de.scrollLeft || b.scrollLeft) - (de.clientLeft || 0);
        cursor.y = e.clientY + 
            (de.scrollTop || b.scrollTop) - (de.clientTop || 0);
    }
    return cursor;
}
	
function followmouse(e)
{
	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)
	
	//xcoord = e.clientX + 15;
	//ycoord = e.clientY + 15;
	
	cx = getPosition(e).x;
	cy = getPosition(e).y
	xcoord = cx + 15;
	ycoord = cy + 15;
	
	if (xcoord + divw > docwidth) xcoord = cx - 15 - divw;
	if (ycoord + divh > docheight) ycoord =  cy - 15 - divh;
	if (xcoord < window.pageXOffset) xcoord = cx + 15;
	if (ycoord < window.pageYOffset) ycoord =  cy + 15;
	
	
	gettrailobj().left=xcoord+"px";
	gettrailobj().top=ycoord+"px";
	
	//gettrailobj().left="10px";
	//gettrailobj().top="150px";
}

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

function trailOff()
	{
	gettrailobject().innerHTML = '';
	document.onmousemove='';
	gettrailobj().visibility="hidden";
	}

function trailOn(thumbimg,imgtitle,thw,thh)
	{
	return;
	if (ua.indexOf('safari') == -1)
		{
		divthw = parseInt(thw) + 2;
		gettrailobject().innerHTML = '';
		open_url(thumbimg,gettrailobject().id);
		gettrailobj().visibility="visible";
		gettrailobj().width=thw;
		gettrailobj().height=thh;
		divw = 300;
		divh = 200;
		document.onmousemove=followmouse();
		}

	}