Window positioning woes

[ben_m_gunn]

Hi All

I am trying to write a function that sets the position of a popup window. I was under the impression that NS uses screenX & screenY to set the position of the popup window, while IE used top & left properties.

I tried to make the script distinguish between NS and IE but I have encountered a few problems.

1. When I test it in IE it detects both methods, thus the position variable takes on the screenX/screenY format (since the secong method [if statement] follows the first). Funnily enough though it still works (even though IE doesn't support those two properties (screenX/screenY). Strange??

2. NS6 (Windows) only detects the second method thus no problems here.

3. Mozilla 1.? (Linux) detects both methods so ends up assigning variable position with the screenX/screenY properties. Not sure why it detect boths, but it works.

4. Galeon 1.? (Linux) same as Mozilla above except that the popup window wont open in the correct position. I thought Galeon was derived from Mozilla, thus if it works on Mozilla and NS6, then it should work on Galeon. What gives??

Below is a copy of the script. Can anyone see anything that might be causing the problems I mentioned above?

Kind regards, Ben

function PopUp(temp)
{
   /* Calculate screen width and height */

   /* Calculate browser object model and set position string accordingly */
   if (document.body.clientWidth) // Browser suports IE DOM
   {
      alert('IE\nWidth '+ document.body.clientWidth +'\nHeight '+ document.body.clientHeight +'\nNSwidth '+ screen.width +'\nNSheight '+ screen.height);
      screen_width = (document.body.clientWidth - 600)/2;
      screen_height = (document.body.clientHeight - 300)/2;
      position = 'left='+ screen_width + ', top='+ screen_height;
   }

   if (screen.width) // Browser supports NS DOM
   {
      alert('NS');
      screen_width = (screen.width - 600)/2;
      screen_height = (screen.height - 300)/2;
      position = 'screenX='+ screen_width +', screenY='+ screen_height;
   }

   string = temp;
   features = 'width=600, height=400, ' + position;
   smallWindow = window.open(string, 'Experience', features);
}