function formHandler(form){
var URL = document.form.site.options[document.form.site.selectedIndex].value;
window.location.href = URL;
}




 function catalogo(url) {
	if (url != null) {
	    newWindow = window.open(url,"catalogo","toolbar=no,location=no,status=yes,menubar=no,resizable=no,directories=no,scrollbars=yes,width=500,height=450,left=50,top=50");
		newWindow.focus();
	}
 }