To set value to server control(asp.net, label control) in javascript

[sudhashekhar30]

--------javascript function--------

function setvalue()
{
var empfname=document.getElementById('<%=TxtempFname.ClientID >').value;
 
 if(empfname=="")
   {
    document.getElementById('<%=LabelValidMsg.ClientID %>').value="please   insert First Name";
 
    document.getElementById('<%=TxtempFname.ClientID %>').focus();
   }
}
 

--------asp.net---------

page load()
{ if ( !page.isPostBack)
  {submitBtn.attributes.add("onclick", setvalue());}
}
 

i am checking the value in textbox. if it is empty den setting value of label and sending cursor back to textbox. mine coding is not working(not setting value in label). how i can do it?

[acoder]

What is the label? If it's not got a value attribute, you'll need to use innerHTML instead.

Don't forget to use code tags when posting code:

[CODE=javascript]
JavaScript code...
[/code]

[dabei]

Can you try to debug it with Firebug ?