Problem with ClientSide Validations

[hiranmaie]

I am doing client side validation. I am writing a javascript to do this.
The Javascript is :

script language="javascript" type="text/javascript">
  function validate()
  {
        var CName=document.getElementById("<%=txtCustName.ClientID%>").value;
        var Addr=document.getElementById("<%=txtAddress.ClientID%>").value;
        var Phone=document.getElementById("<%=txtPhone.ClientID%>").value;
 
        if(CName.length<1)
        {
            alert('Please Enter Customer Name'); 
            return false;
        }
 
        if(Addr.length<1)
        {
            alert('Please Enter The Address');
            return false;
        }
 
        if(Phone.length<1)
        {
            alert('Please Enter The Phone Number');
            return false;
        }
    return true;
  }
  </script>
 

at HTML source and I am calling this function at the onclientclick event of submit button.
I am not getting error. I even get the message box for CName and Address, but the control goes to submit button and the blank space gets saved.
for City it even wont show the message also.
What would be the reason can anybody please tell me.

[tlhintoq]

TIP: When you are writing your question, there is a button on the tool bar that wraps the [code] tags around your copy/pasted code. It helps a bunch. Its the button with a '#' on it. More on tags. They're cool. Check'em out.