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[peace2007]

Hi,

I try to check if a variable is null via following code but I don't get an expected result:

 var askedUser = re.responseText;
		    askedUser = askedUser.substr(0, askedUser.indexOf('&',0));
			if(askedUser != null  && askedUser != " ")
			{	do something}

the if() returns true whether askedUser == "" or askedUser = "a value"!
Could anyone guide me please?

[hamedvahedi]

Change your code to this:
if(askedUser != NULL && askedUser != "")

Attention: NULL and ""

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