show='' 
function OpenFile(url) {
if( show=='' || show.closed) {	show=window.open(url,'OpenFile','scrollbars=1,resizable=0,status=0, width=50,height=50');}
else{ 	show.close();	show=window.open(url,'OpenFile','scrollbars=1,resizable=0,status=0, width=50,height=50');}
}