function fixH()
{
if (!(document.getElementById('leftcolumn')) )
{return false;}
else
{var lh=document.getElementById('leftcolumn').offsetheight;
var rh=document.getElementById('rightcolumn').offsetheight;
document.getElementById('rightcolumn').style.height=(lh>rh)? lh+"px" : rh+"px";
document.getElementById('leftcolumn').style.height=(rh>lh)? rh+"px" : lh+"px";
}
}
window.onload=function(){fixH()}