how to allow whitespace in my javascript validation

[simi28]

Hi all
I need to allow whitespace in my javascript validation in each word.
I don't know how to do the same can anybody help me.
I have written the javascript, in this code whitespace is not allowing right now
can any body help me regarding this.
here is my code
//

function isCharsInBag (s, bag)
{
var i;
for (i = 0; i < s.length; i++)
{
// Check that current character isn't whitespace.
var c = s.charAt(i);
if (bag.indexOf(c) == -1) return false;
}
return true;
}


if (isWhitespace(document.form1.partno.value))

{
Q += " Supplier Part Number\n";
}
if (!isCharsInBag(document.form1.partno.value, "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz " ))
{
errMesg += " Enter Alpha Numeric Value For Supplier Part Number\n";
}

//

thanks

[Suhas Dhoke]

Try the following regex.

function JS_Validator(f) {
if (f.elements[0].value.length < 1) {
alert("Enter Alpha Numeric Value For Supplier Part Number.");
f.elements[0].focus();
return(false);
}
if (window.RegExp) {
var reg = new RegExp("^([a-zA-Z0-9 ])*$", "g");
if (!reg.test(f.elements[1].value)) {
alert("Enter Alpha Numeric Value For Supplier Part Number");
f.elements[1].focus();
return(false);
}
}
}

[vijiruba]

Try this :

var name = document.form1.partno.value;
if (!name.match(/^[a-zA-Z0-9 ]+$/))
{
errMesg += " Enter Alpha Numeric Value For Supplier Part Number\n";
}