Javascript validation code errors, problems and bugs

[karen987]

Can someone please tell me how to alter this code if it needs altering, . thanks in advance.


1. The form keeps focusing on "username" and won't submit. The 2 username functions may be clashing? i want the username to be letters and numbers only , no special characters or spaces, 5-18 characters.

2. The country is a drop down list, and they must select one. I think since it is a drop down i don't need the function which checks for blanks and empty? or do i? or maybe it should be altered?

3. The opt15 function if for a mandatory checkbox,


4.. That the closing brackets at the end are correct?

The problems may well be very simple omissions, i'm not html literate. these are ASP pages by the way.

   if (String(frm.username.value).replace(/ /g, "") == "")  {
         alert("Please enter desired username. Must be between 5-25 characters (no special characters).")
         document.frm.username.focus() ;
        return false; }
 
  var regExp = /^[A-Za-z][A-Za-z0-9_]*$/;
   if(!regExp.test(frm.username.value))
     alert("no special characters or spaces in 'username'")
   if(frm.username.value.length > 18 || frm.username.value.length < 5)
alert("'Username' should be between 5-18 characters.")
 for(i=0;i<frm.username.value.length;i++) {
 document.frm.username.focus() ;
   return false; }
 
 
if (String(frm.country.value).replace(/ /g, "") == "")  {
         alert("Please enter your country.")
         document.frm.country.focus() ;
        return false; }
 
  if(document.frm.country.value.length < 2) {  
   alert("Minimum 2 characters for 'country'.")
  document.frm.country.focus() ;
   return false; }
 
   if(document.frm.country.value.length > 20) {  
   alert("Maximum 20 characters allowed for 'country'.")
  document.frm.country.focus() ;
   return false; }
 
   var mycheckbox = document.frm.opt15; 
if (mycheckbox.checked == false) { 
   alert("this checkbox is mandatory") 
   return false; 
} 
   return true; 
    } 
} 

[iam_clint]

first problem

   if(frm.username.value.length > 18 || frm.username.value.length < 5)
alert("'Username' should be between 5-18 characters.")
 for(i=0;i<frm.username.value.length;i++) {
 document.frm.username.focus() ;
   return false; }
 
 

if(frm.username.value.length > 18 || frm.username.value.length < 5)  {
alert("'Username' should be between 5-18 characters.")
document.frm.username.focus() ;
return false; }
 

[karen987]

thank you, IamClint. appreciated.