function ResizeElements() {  
            
    var pnlFooterContainer = $get('pnlFooterContainer');
    var pnlContentContainer = $get('pnlContentContainer');
    var pnlMainContainer = $get('pnlMainContainer');
    
    var intHeaderAndFooterHeight = (277 + pnlFooterContainer.offsetHeight);
    
    if (document.body.scrollHeight <= document.body.offsetHeight) {
        pnlContentContainer.style.height = (document.body.offsetHeight - intHeaderAndFooterHeight) + "px";
    }else {
        pnlContentContainer.style.height = pnlContentContainer.scrollHeight + "px";
    }   
}