function openWnd(strTipo, strUrl){
	var ancho;
	var alto;
	switch (strTipo) {
	case 'usuario' :
		ancho=492;
		alto=300;
		break;
	case 'mensaje' :
		ancho=400;
		alto=210;
		break;
	case 'oficina' :
		ancho=600;
		alto=525;
		break;
	case 'curriculum' :
		ancho=300;
		alto=200;
		break;
	case 'cartera' :
		ancho=310;
		alto=200;
		break;
	case 'horario' :
		ancho=300;
		alto=250;
		break;
	}
	var winl = (screen.width - ancho) / 2;
	var wint = (screen.height - alto) / 3;
	winprops = 'height='+alto+',width='+ancho+',top='+wint+',left='+winl+',scrolling=no,resizable=no,toolbars=no,locationbar=no,directories=no,menubar=no'
	if (strTipo == 'horario'){ winprops = winprops + ',scrollbars=yes' }
	
	win = window.open(strUrl, strTipo, winprops)
	if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}