window.onresize = CheckSize;

SafeAddOnload(CheckSize);

function getDim(el){
    for (var lx=0,ly=0; el!=null; lx+=el.offsetLeft,ly+=el.offsetTop,el=el.offsetParent);
    return {x:lx,y:ly}
}

function CheckSize() {
    if (self.innerWidth)    {
        frameWidth = self.innerWidth;
        frameHeight = self.innerHeight;
    }
    else if (document.documentElement && document.documentElement.clientWidth)  {
        frameWidth = document.documentElement.clientWidth;
        frameHeight = document.documentElement.clientHeight;
    }
    else if (document.body)  {
        frameWidth = document.body.clientWidth;
        frameHeight = document.body.clientHeight;
    }
    if(gid("exa_iframe")) {
        gid("exa_iframe").style.height =  (frameHeight - getDim(gid("exa_iframe")).y - getElementHeight("bas") -5 ) +"px";
    }
}