/*

Simple Image Trail script- By JavaScriptKit.com

Visit http://www.javascriptkit.com for this script and more

This notice must stay intact

*/



var offsetfrommouse=[15,15]; //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.



if (document.getElementById || document.all){

	document.write('<div id="imageTrail">');

	document.write('</div>');

}



function gettrailobj(){

	if (document.getElementById)

	return document.getElementById("imageTrail").style

	else if (document.all)

	return document.all.imageTrail.style

}



function gettrailobjnostyle(){

	if (document.getElementById)

	return document.getElementById("imageTrail")

	else if (document.all)

	return document.all.imageTrail

}





function truebody(){

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

}





function showtrail(imagename,title,subtitle,description){

	document.onmousemove=followmouse;



	newHTML = '<div style="padding: 5px;">';

	newHTML = newHTML + '<div id="imageTrailHeader">';

	newHTML = newHTML + '<h3>' + title + '</h3>';

	newHTML = newHTML + '<p>' + subtitle + '</p>';

	newHTML = newHTML + '</div>';

	newHTML = newHTML + '<img src="' + imagename + '" />';

	newHTML = newHTML + '<p>' + description + '</p>';

	newHTML = newHTML + '</div>';

	

	gettrailobjnostyle().innerHTML = newHTML;

	gettrailobj().display="inline";

}





function hidetrail(){

	gettrailobj().innerHTML = " ";

	gettrailobj().display="none"

	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 (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 < 380){

			xcoord = e.pageX - xcoord - 320; // 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 - 320; // 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"

}