var highlighting;
 function high(which){
	 theobject=which
	 highlighting=setInterval("HighLight(theobject)",5)}
		
 function low(which){
	 clearInterval(highlighting)
	 which.filters.alpha.opacity=50}

 function HighLight(cur){
	 if (cur.filters.alpha.opacity<100)
		cur.filters.alpha.opacity+=5
	 else if (window.highlighting)
		clearInterval(highlighting)}