JavaScript - Help with Form Validator

[argrafic]

i have the following validator:

function formValidator(){
	// Make quick references to our fields
	var nom = document.getElementById('nombre');
	var pes = document.getElementById('peso');
	var eda = document.getElementById('edad');
	var sex = document.getElementById('sexo');
	var hrt = document.getElementById('TOTAL');

// Check each input in the order that it appears in the form!
if(isAlphanumeric(nom, "Nombre es requerido.")){
	if(isNumeric(pes, "Peso es requerido y debe ser un número.")){
		if(isNumeric(eda, "Edad es requerido y debe ser un número.")){
			if(madeSelection(sex, "Sexo es requerido.")){
				if(validate_required(hrt, "El total de horas debe de sumar 24.")) {
						return true;
				}
			}
		}
	}
}


return false;

}

function isEmpty(elem, helperMsg){
	if(elem.value.length == 0){
		alert(helperMsg);
		elem.focus(); // set the focus to this input
		return true;
	}
	return false;
}

function isNumeric(elem, helperMsg){
	var numericExpression = /^[0-9]+$/;
	if(elem.value.match(numericExpression)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}

function isAlphabet(elem, helperMsg){
	var alphaExp = /^[a-zA-Z]+$/;
	if(elem.value.match(alphaExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}

function isAlphanumeric(elem, helperMsg){
	var alphaExp = /^[0-9a-zA-Z]+$/;
	if(elem.value.match(alphaExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}

function lengthRestriction(elem, min, max){
	var uInput = elem.value;
	if(uInput.length >= min && uInput.length <= max){
		return true;
	}else{
		alert("Please enter between " +min+ " and " +max+ " characters");
		elem.focus();
		return false;
	}
}

function madeSelection(elem, helperMsg){
	if(elem.value == "Please Choose"){
		alert(helperMsg);
		elem.focus();
		return false;
	}else{
		return true;
	}
}

function emailValidator(elem, helperMsg){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(elem.value.match(emailExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}

function validate_required(field,alerttxt){
	with (field)
	{
		if (value != 24) {
			alert(alerttxt);
			return false;
		} else {
				return true
				}
	}
}

i have an issue with the isAlphanumeric validation form, because when people enter a name with spaces it says that it sends teh message that the name fieldname is empty and should be filled.

how can i correct it so that it "reads" spaces?

thanks!

[Weedpacket]

Add a space to the list of characters in the expression misnamed "alphaExp".

But then it's not really "alphanumeric" any more, because a space is not an alphanumeric character.

Then again, how many people have digits in their name?

[argrafic]

thanks for the help...

but i found the solution... and it was pretty simple

function isEmpty(elem, helperMsg){
	if(elem.value.length == 0){
		alert(helperMsg);
		elem.focus(); // set the focus to this input
		return true;
	}
	return false;
}

that part (in the same code) helped me validate what i wanted...

[Weedpacket]

So '$%)!!!"' would be valid, then?