// variables para controlar los navegadores
var ns6 = (!document.all && document.getElementById)? 1:0;
var ie = (document.all)? 1:0;
var ns4 = (document.layers)? 1:0;

function Cambiar2Frame(url,url2) {
    if (ie) {
	top.control.location.href = url;
	top.player.location.href = url2;
	}
	if (ns4) {
	document.control.src = url;
	top.player.src = url2;
	}
    else {
	top.document.getElementById("control").src = url;
	top.document.getElementById("player").src = url2;
	}
}