var offsetfrommouse=[15,15]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration=8; //duration in seconds image should remain visible. 0 for always.
var currentimageheight = 380;	// maximum image size.

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

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

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


function truebody(){
return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}
/* usage
<img alt="Chocolate Drops - Vector" src="chocolate_drops_vector.jpg" onmouseover="showtrail('http://www.khanakhazana.com/fooditem_chocolate.jpg',
		'Chocolate Drops - Vector',
		'See my vector illustrations serie by clicking on the image below: ',
		'4.5000', '2', '1',	380);"
onmouseout="hidetrail();"  />
*/
function showtrail(title, description, ratingaverage, height){

	if (height > 0){
		currentimageheight = height;
	}
	document.onmousemove=followmouse;
	cameraHTML = '<img src="/inc/icons/rate' + ratingaverage + '.gif">';
	newHTML = '<div style="padding: 5px; background-color: #FFF; border: 1px solid #888;">';
	newHTML = newHTML + '<h2>' + title + '</h2>';
	newHTML = newHTML + 'Rating: ' + cameraHTML + '<br/>';
	newHTML = newHTML + description + '<br/>';
	newHTML = 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(window.innerHeight);

	if (typeof e != "undefined"){
		if (docwidth - e.pageX < 380){
			xcoord = e.pageX - xcoord - 400; // 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 < 380){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - 400; // 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);
		if(ycoord < 0) { ycoord = ycoord*-1; }
	gettrailobj().left=xcoord+"px";
	gettrailobj().top=ycoord+"px";
}