hi i am 4 textboxes & one dropdownlist.all are mandatory.items for dropdown list are retrieved from database.they are "select",6,7,8,9 &10.by default select is displayed.until i fill all 4 textboes & select one of the five options ie 6,7,8,9 &10 button should be disabled.i am using javascript function
<scripttype="text/javascript">
function EnableUpload() {
if (document.getElementById("<%=txtfirstname.ClientID %>").value != ""&& document.getElementById("<%=txtlastname.ClientID %>").value != ""&& document.getElementById("<%=txtemailid.ClientID %>").value != ""&& document.getElementById("<%=txtpwd.ClientID %>").value != ""&& document.getElementById("<%=ddlusertypeid.ClientID %>").value != "") {
document.getElementById("<%=btnSubmit.ClientID %>").disabled = false;
}
else {
document.getElementById("<%=btnSubmit.ClientID %>").disabled = true;
}
}
</script>
the pbm i am facing here is i am not selecting an item from dropdownlist.even then the button is enabled.but actually button should be disabled until i select one of the items(6,,8,9 &10).pls help me how to achieve this...<asp:DropDownListID="ddlusertypeid"runat="server"MaxLength="60"onChange= "javascript:EnableUpload();"AutoPostBack="True"></asp:DropDownList>