// OVERTRAIL
var OverTrailHeight, OverTrailWidth;
function OverTrail(html,width,height,padding) {
	OverTrailWidth = width+padding*2+2;
	OverTrailHeight = height+padding*2+2;
	ObjTrail = document.getElementById("overtrail");
	ObjTrail.style.width = (document.all?OverTrailWidth:width)+"px";
	ObjTrail.style.padding = padding+"px";
	ObjTrail.innerHTML = html;
	document.onmousemove = FollowMouse;
}
function OverTrail_Img(imagename,width,height) { OverTrail('<img src="' + imagename + '" border="0">',width,height,0); }
function HideTrail() {
	document.getElementById("overtrail").style.visibility="hidden";
	document.onmousemove="";
}
function FollowMouse(e) {
	x=15, y=15;
	xmax=document.all? document.body.clientWidth+document.body.scrollLeft : window.innerWidth+window.pageXOffset-15;
	ymax=document.all? document.body.clientHeight+document.body.scrollTop : window.innerHeight+window.pageYOffset-15;
	if (typeof e != "undefined") {
		x+=e.pageX; y+=e.pageY;
	} else if (typeof window.event !="undefined") {
		x+=document.body.scrollLeft+event.clientX; y+=document.body.scrollTop+event.clientY;
	}
	if (x+OverTrailWidth>xmax) x=x-OverTrailWidth-30;
	if (y+OverTrailHeight>ymax) y=y-OverTrailHeight-15;
	document.getElementById("overtrail").style.left=x+"px";
	document.getElementById("overtrail").style.top=y+"px";
	document.getElementById("overtrail").style.visibility="visible";
}