var ShowTimer = 0;
var prevToolTip = '';
function tooltip(ck, oid) {
	var ckh = ck.offsetHeight;
  o = document.getElementById(oid);
	var nleft = 0;
	var ntop = 0;
	if (ck.offsetParent) {
		nleft = ck.offsetLeft
		ntop = ck.offsetTop
		while (ck = ck.offsetParent) {
			nleft += ck.offsetLeft
			ntop += ck.offsetTop
		}
	}
	o.style.left = nleft - 28 + 'px';
	o.style.top = ntop + ckh + 'px';
	if(ShowTimer !== 0){
		clearTimeout(ShowTimer);
		ShowTimer = 0;
	}
	ShowTimer = setTimeout('tooltipdisplay(\''+oid+'\')', 500);
}

function tooltipdisplay(obj){
	var o = document.getElementById(obj);
	o.style.display = 'block';
	setTimeout('tooltiphide(\''+obj+'\')', 7000);
}

function tooltiphide(obj){
	var o = document.getElementById(obj);
	o.style.display = 'none';
	clearTimeout(ShowTimer);
	ShowTimer = 0;
}