/* Valida una direcció d'email */
function isEmailAddress(theElement) {
   var s = theElement;
   //var filter=/^[A-Za-z][A-Za-z0-9\\.]*@[A-Za-z0-9_]+\.[A-Za-z0-9_.]+[A-za-z]$/;
   var filter=/^[A-Za-z][A-Za-z0-9_.\\-]*@[A-Za-z-_=>0-9\.]+\.[A-Za-z0-9_.]+[A-za-z]{2,3}$/;
   if (s=="") return false;
   if (s.length == 0 ) return false;
   if (filter.test(s)) return true;
   else return false;
}

function CampText(camp){
	var valid = true;
	
	var el = document.getElementById(camp);
	if (el.value.length <= 0) valid = false;
	
	CambiaColor(el,valid);
	
	return valid;
}

function CampEmail(camp){
	
	var el = document.getElementById(camp);
	valid = isEmailAddress(el.value);
	
	CambiaColor(el,valid);
	
	return valid;
	
}

function CampNumeric(camp,digits){
	var valid = false;
	
	var el = document.getElementById(camp);
	var num=el.value;
	
	
	if(digits == 0){
		if(num.length > 1) valid = soloNumerico(num);
	}
	else if(num.length == digits) valid = soloNumerico(num);
	
	CambiaColor(el,valid);
	
	return valid;
}

function soloNumerico(valor) {
	return !isNaN(valor);
}

function CambiaColor(obj,valid){	
	if(!valid) {
		obj.style.border = "1px solid #e51d13";
		obj.style.background = "#f6eaea";
	}
	else {
		obj.style.border = "1px solid #000000";
		obj.style.background = "#FFFFFF";
	}
}