Inline error with radio buttons

[fieryscream]

This is the javascript code that i have for validating a form, it raises error if the user puts in invalid information. The problem im having is when i enter:

/*  if(title.checked=false){
  inlineMsg('radio', 'You must select a title.',2);
  return false;
  */

it brakes the code, but when i comment out the rest works fine?????

function validate(form) {
  var name = form.name.value;
  var email = form.email.value;
  var title = form.title.value;
  var nameRegex = /^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/;
  var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
  var messageRegex = new RegExp(/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>/gim);
/*  if(title.checked=false){
  inlineMsg('radio', 'You must select a title.',2);
  return false;
  }*/
  if(name == "") {
    inlineMsg('name','You must enter your name.',2);
    return false;
  }
  if(!name.match(nameRegex)) {
    inlineMsg('name','You have entered an invalid name.',2);
    return false;
  }
  if(email == "") {
    inlineMsg('email','<strong>Error</strong><br />You must enter your email.',2);
    return false;
  }
  if(!email.match(emailRegex)) {
    inlineMsg('email','<strong>Error</strong><br />You have entered an invalid email.',2);
    return false;
}
 
  return true;
}

HTML
Here is Html for the radio buttons

    <label>Mr:
        <input name="title"  value="Mr"  type="radio" />
      </label>
      <label> Ms:
        <input name="title" value="Ms" type="radio" />
      </label>
      <label> Mrs:
        <input name="title"  value="Mrs" type="radio" />
      </label>
      <label> Dr:
        <input name="title" value="Dr" type="radio" />
      </label>

[Dormilich]

@fieryscream
a less error-prone approach to if conditions:

if ("value" == variable)

if you’re incidentally using the assignment operator (=), there will be an error thrown

[fieryscream]

yup i have tried the == ... but is still not works ?

[Dormilich]

what does the error state?

[fieryscream]

um i got it to work in the end
however i had to make the focus of the error on another element
so i was thinking of making an invisible element next to the radio buttons in order to make the message appear next to them.

So ... how do i make a text box be invisible?

[acoder]

The error was caused by this line:

var title = form.title.value;

It's got the value of the radio button, not the button itself.

To hide an element, set its display property to "none" (to remove from the flow) or its visibility to "hidden".