RE: Check Username Availability in ASP.Net using AJAX PageMethods

Hi! I have tried you code, but there is error...  do u mind helping me? Thanks :D

Compilation Error

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: CS1525: Invalid expression term ')' Source Error:

Line 8:      <script type = "text/javascript">
Line 9:          function ShowAvailability() {
Line 10: PageMethods.CheckUserName(document.getElementById("<%=txtUserName.LoginID%%>").value, OnSuccess); Line 11:         }
Line 12:         function OnSuccess(response) {