01.Response.Write("<script language='javascript'>")
02.
03.Response.Write("var user;")
04.Response.Write("var pass;")
05.Response.Write("var con;")
06.Response.Write("var mail;")
07.
08.
09. Response.Write("function checkUser(){")
10. Response.Write("var UserName=document.getElementById('Username').value;")
11. Response.Write("var Num=document.getElementById('num').value;")
12. Response.Write("var i=0;")
13. Response.Write("var result=0;")
14. Response.Write("while(i<Num){")
15. Response.Write("if(UserName==document.getElementById('User'+i).value){")
16. Response.Write("result=1;")
17. Response.Write("}")
18. Response.Write("i++;")
19. Response.Write("}")
20. Response.Write("If (UserName.length < 1) Then")
21. Response.Write("user='<div class='style7'><img src='../images/icon_error.gif'> The username is empty.</div>';")
22. Response.Write(" ElseIf (UserName.length < 4) Then")
23. Response.Write("user='<div class='style7'><img src='../images/icon_error.gif'> The username must have 4-15 the letter.</div>';")
24. Response.Write(" else if(result==0)")
25. Response.Write("user='<div class='style10'><img src='../images/icon_success.gif'> This username can is usable.</div>';")
26.
27. Response.Write("Else")
28. Response.Write("user='<div class='style7'><img src='../images/icon_error.gif'> This username has had the user already.</div>';")
29.
30. Response.Write("document.getElementById('targetDiv').innerHTML=user;")
31.
32. Response.Write("}")
