function showsub(id,event){
    var target = document.getElementById(id);
    var x = 0;
	var y = 0;

	var elem = event.srcElement ? event.srcElement : event.target;
	
	do 
	{
		x += elem.offsetLeft;
		y += elem.offsetTop;
		if (elem.tagName == "BODY" || elem.tagName == "HTML"){
			y += 5;
			break;
		}
		elem = elem.offsetParent; 
	} while  (1 > 0);

	target.style.left = 390 + "px";
	target.style.top = 83 + "px";
	target.style.visibility="visible";
	
}
function keepsub(id){
	var target = document.getElementById(id);
	target.style.visibility = "visible";

}
function hidesub(id){
	var target = document.getElementById(id);
	target.style.visibility = "hidden";
}