function openWin(theUrl,theName,props) { 
   WinId = window.open(theUrl,theName,props); 
   if (!WinId.opener) WinId.opener = self; 
} 
Text  = ' <a onMouseOver="self.status=\'Nuttige website? Vertel het door!\'; return true" CLASS="apop" href="javascript:;" onClick'
Text += ' ="openWin(\'tell_a_friend.html\',\'myWin\',\'width=300,height=275,screenX=100,screenY=50,left=100,'; 
Text += 'top=50,scrollbars=no\');return false;">tell a friend!</A>&nbsp;&nbsp;&nbsp;'; 
if(document.images)
document.write(Text);