Validating mobileNo.

Question

In asp.net appln, I have a TextBox for mobile num with ID "txtMobileNo".
And the below JS function is assigned to Button as below:-
function ToCellValidate()
{
var mob = document.getElementById( ").value;
if(mob !="")
{
var incomingString = mob ;
if(trimSpace(incomingString).length > 15 || incomingString.search(/[^0-9\-()+]/g) != -1 )
{
alert('Please enter valid mobile number');
txtMobileNo.focus();
txtMobileNo.value="";
return false;
}
else
return true;
}
}
Please tell me what is wrong with above JS function.

Koteswararao Mallisetti · Accepted Answer

in the if we set the condition if text box value is not equals "" then ok in the else means
that is equal to space("") then also you return the false .
major mistake is
return ToCellValidate()"/>
If it's ok plz click on accept thumb