/*inicializa comportamiento rollover botones*/
function init_rollover_botones(){
var botones = document.getElementsByTagName("span");
for (var i=0;i<botones.length;i++) {
	if (botones[i].className == "botonAmarillo") {
	
		botones[i].onmouseover = function(){
			this.className = "botonAmarillo overAmarillo"
		};
		botones[i].onmouseout = function(){
			this.className = "botonAmarillo"
		};
		
	}
}
}

function pop_up(url){
    var an = 620;
	var al = 700;
	var top = ((screen.height/2)-(al/2));
	var left = ((screen.width/2)-(an/2));
	window.open(url,'nombreVentana','width='+an+',height='+al+',menubar=No, directories=No, toolbar=No, location=No,scrollbars=Auto,status=No,resizable=No,fullscreen =No,top='+top+',left='+left+'');
	
}

function pop_up2(url){
    var an = 420;
	var al = 300;
	var top = ((screen.height/2)-(al/2));
	var left = ((screen.width/2)-(an/2));
	window.open(url,'nombreVentana','width='+an+',height='+al+',menubar=No, directories=No, toolbar=No, location=No,scrollbars=Auto,status=No,resizable=No,fullscreen =No,top='+top+',left='+left+'');
	
}