var oProp ;
	function showalt(event,text){
		event = event||window.event;
		var x = getXY(event).x;
		var y = getXY(event).y;
		oProp = oProp|| document.createElement("div");
		oProp.className = 'prop';
			
		oProp.innerHTML=text;
		oProp.style.left = x+10+"px";
		oProp.style.top = y+10+"px";
		oProp.style.display="block";
		//alert(oProp.outerHTML);
		document.body.appendChild(oProp);
		
	}

	function hidealt(){
		try{	document.body.removeChild(oProp);}catch(e){}

	}
	
	function getXY(event){
		var x,y;
		if(document.body.scrollTop){
		  x=event.clientX+document.body.scrollLeft;
		  y=event.clientY+document.body.scrollTop;
		}
		else{
		  x=event.clientX+document.documentElement.scrollLeft;
		  y=event.clientY+document.documentElement.scrollTop;
		}
		return {x:x,y:y};
	}