popup window displaying a page

[c-o-d-e]

The following code doesn't create a popup, displaying the page wicaptcha.php

It does nothing, whats the problem?

	  <script type="text/javascript">
  function popUp(URL) {
  day = new Date();
  id = day.getTime();
  eval("page" + id + " = window.open(URL, '" + id + "',
  'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=500,height=500,left = 390,top = 150');");
  }
      </script>

<a href="#" onclick="popUp('/wicaptcha.php');">Whats this?</a>

[trq]

What is the point of the eval call?

[c-o-d-e]

I don't really understand Evals, though that sets the options for the popup, along with the page to be displayed.

[c-o-d-e]

I changed it to

window.open(URL,id,"toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=500,height=500,left = 390,top = 150"); 

 

Although on firefox, it is still resizable. How can this be prevented.

Thanks