function forgot()
{
    var form=this.document.frmLogin;
    var userName=document.frmLogin.txtuserid.value;
    if (userName=="") 
        {
        alert("Please enter the User Name");
        }
      else 
       {
		window.document.location="sendForgotPwdMail.asp?Email=" + document.frmLogin.txtuserid.value;         
       }
}