var showingHTML = false;
var offsetfrommouse=[15,15]; //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 = 270;	// maximum image size.
var noPicture = 'no';

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,title,description,showthumb,height){

	showingHTML = false;
	if (height > 0){
		currentimageheight = height;
	}

	document.onmousemove=followmouse;

	cameraHTML = '';

	newHTML = '<div>';
	newHTML = newHTML + '<span>' + title + '</span>';

	if (showthumb > 0){
		newHTML = newHTML + '<div style="padding:5px;width:141px;height:186px;background:url(http://img.swan-danse.com/background/subcat_products.jpg);"><img src="' + imagename + '" border="0"></div>';
	}

	newHTML = newHTML + '</div>';

	gettrailobjnostyle().innerHTML = newHTML;

	gettrailobj().visibility="visible";

}

function showhtml(newHtml,height) {
	showingHTML = true;
	newHtml = '<div align="left">' + newHtml + '<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 (showingHTML) {
				xcoord = e.pageX - xcoord - 300;	
		} else {
			if (docwidth - e.pageX < 400){
				if (noPicture == "yes") {
					xcoord = e.pageX - xcoord + 20; // Move to the left side of the cursor
				} else {
					xcoord = e.pageX - xcoord - 286; // 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 (showingHTML) {
				xcoord = event.clientX - xcoord - 300;
		} else {
		
		if (docwidth - event.clientX < 400){
			if (noPicture == "yes") {
				xcoord = event.clientX + truebody().scrollLeft - xcoord + 20; // Move to the left side of the cursor
			} else {
				xcoord = event.clientX + truebody().scrollLeft - xcoord - 286; // 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;
		}
	}

	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)

	gettrailobj().left=""
	gettrailobj().top=""
}