// JScript File
        
        var ASPID = 'ctl00_ContentPlaceHolder1_';                                
        var ReqField = new RequiredField();
        
        ReqField.Add(ASPID +   'Tbx_FirstName','text','Enter Your First Name' ); 
        ReqField.Add(ASPID +   'Tbx_LastName','text','Enter Your Last Name' ); 
        ReqField.Add(ASPID +   'Tbx_Email','text','Enter Your Email Address' );
        ReqField.Add(ASPID +   'Tbx_ContactNo', 'text', 'Enter Your Contact No');
        ReqField.Add(ASPID +   'tbx_comments', 'text', 'Enter Your Comments');
        
        ReqField.RegEx(ASPID + 'Tbx_Email',/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/,'','Please Enter valid email address');                             

        function CheckInputs()
        {               
            try
            {                            
            var Msg=ReqField.Check();                                    
            if(Msg[0])
            {
                return true;
            }
            else    
            {
               alert(Msg[1])                              
               return false;
            }
            }
            catch(e)
            {
               alert(e);
           }
           
      }