// JavaScript Document
function popUp(URL,width,height) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width="+width+",height="+height+"');");
}

// centrar ventana en la pantalla
function centrar() {
    iz=(screen.width-document.body.clientWidth) / 2;
    de=(screen.height-document.body.clientHeight) / 2;
    moveTo(iz,de);
}

function abrir(winurl,winname,winfeatures){
window.open(winurl,winname,winfeatures);
}