var offsetfrommouse=[15,25]; //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 defaultimageheight = 40;	// maximum image size.
var defaultimagewidth = 40;	// maximum image size.
var divIdGlob;
function truebody(){return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body}
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 < defaultimagewidth + 2*offsetfrommouse[0]){xcoord = e.pageX - xcoord - defaultimagewidth;} else {xcoord += e.pageX;}
		if (docheight - e.pageY < defaultimageheight + 2*offsetfrommouse[1]){ycoord += e.pageY - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + e.pageY - docheight - truebody().scrollTop));} else {ycoord += e.pageY;}
	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < defaultimagewidth + 2*offsetfrommouse[0]){xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth;} else {xcoord += truebody().scrollLeft+event.clientX}
		if (docheight - event.clientY < (defaultimageheight + 2*offsetfrommouse[1])){ycoord += event.clientY + truebody().scrollTop - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + event.clientY - docheight));} else {ycoord += truebody().scrollTop + event.clientY;}
	}
	var myDiv = document.getElementById(divIdGlob);myDiv.style.left=xcoord+"px";myDiv.style.top=ycoord+"px";
}
function show(imagename,divId,e)
{
    divIdGlob = divId;
    var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth - offsetfrommouse[0]
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)
	if( (navigator.userAgent.indexOf("Konqueror")==-1 || navigator.userAgent.indexOf("Firefox")!=-1 || (navigator.userAgent.indexOf("Opera")==-1 && navigator.appVersion.indexOf("MSIE")!=-1))&& (docwidth>650 && docheight>500)) 
	{
	    divIdGlob = divId;
	    document.onmousemove=followmouse;
		newHTML = '<div style="border: 1px solid #666666;">';
    	newHTML = newHTML + '<img src="' + imagename + '" >';
		newHTML = newHTML + '</div>'; 
		var myDiv = document.getElementById(divId);
		myDiv.innerHTML = newHTML;
		myDiv.style.display="block";
	}
}
function hide(divId){divIdGlob = divId;var myDiv = document.getElementById(divId);myDiv.style.display = "none";document.onmousemove="";myDiv.left="-500px";}