function ResizeBlogDivs()
{
    var h;
    var hoffset = 230;
    if (navigator.userAgent.toLowerCase().indexOf('opera') > -1) h = document.body.clientHeight - hoffset;
    else if (document.all) h = document.documentElement.offsetHeight - hoffset - 4;
    else h = self.innerHeight - hoffset;
    if (h < 300) h = 300;
    document.getElementById('blog').style.height = h + 'px';
    document.getElementById('blogleft').style.height = h + 'px';
    document.getElementById('blogcenter').style.height = h + 'px';
    document.getElementById('blogright').style.height = h + 'px';
}