// -->
function vi(cual,i){

	document.images[i].src = cual;

}
// -->

function op(url,ancho,alto){
	
	var pos_y,pos_x,monitor_a,monitor_b;
	
	monitor_a = window.screen.availWidth;
	monitor_b = window.screen.availHeight;

	pos_x = (parseInt(monitor_a/2) - parseInt(ancho/2));
	pos_y = (parseInt(monitor_b/2) - parseInt(alto/2));
	
  	s = window.open(url,'AGB','top='+pos_y+',left='+pos_x+',width='+ancho+',height='+alto+',scrollbars=yes,resizable=0,menubar=0,location=0,toolbar=0,status=0');
	

}

// -->