function ventana_gran(url,name) {

	var nuevaVentana=window.open(url,name,'width=780,height=420,top=25,left=4,resizable=yes,menubar=yes,scrollbars=yes');

	}

    function ventana_alargada(url,name) {

	var nuevaVentana=window.open(url,name,'width=350,height=460,top=15,left=225,resizable=yes,menubar=yes,scrollbars=yes');

	}
	
		
     function ventana_cuadrada(url,name) {

	var nuevaVentana=window.open(url,name,'width=350,height=175,top=94,left=215,noresize,resizable=no,menubar=no');

	}
	
	
     function ventana_ae_caj_rur(url,name) {

	var nuevaVentana=window.open(url,name,'width=780,height=420,top=25,left=4,resizable=yes,menubar=yes,scrollbars=yes');

	}