id="table1";
bh=66;
addhgt=200;

dd=document;IE=(dd.all)?1:0;
if (IE) {
 avh=screen.height-window.screenTop-48-bh;
 } else {
 avh=screen.height-600+446-bh;
 }; 
e=document.getElementById(id);
h=e.offsetTop+e.offsetHeight;
//alert('avh='+avh+'\nh='+h);
if (avh>h) {
 document.write('<table border="0" height="'+(avh-h)+'" width="100%" bgcolor="#FFFFFF" cellpadding="0">');
 document.write('<tr><td>&nbsp;</td></tr></table>');
 };