// JavaScript Document

function sf(){document.f.nom.focus();}


function Comprobar(form) {
	if (form.nom.value==''){
		alert('Si us plau, introduexi el seu nom');
		form.nom.focus();
			return false

	}
	if (form.telefon.value==''){
		alert('Si us plau, introduexi el seu telèfon');
		form.telefon.focus();
			return false

	}
	
	if (form.email.value == ""  ||
		form.email.value.indexOf ('@', 0) == -1 ||
    	form.email.value.indexOf ('.', 0) == -1){
	    alert("'' " + form.email.value + " '', no es un e-mail correcte");
		form.email.focus();
			return false
	}
	
	
return true;
}