function AdjustColumnsHeight(){        
            // get a reference to the three DIVS that make up the columns
            var con = window.document.getElementById('cont');
            var leftCol = window.document.getElementById('l-col');
            // calculate the max height
            var hCenterCol = con.offsetHeight;
            var hLeftCol = leftCol.offsetHeight;         
            var maxHeight = Math.max(hCenterCol, hLeftCol);        
            con.style.height = maxHeight + 'px';
            leftCol.style.height = maxHeight + 'px';
        }

    
    function persistMenu(){    
        var sPath = window.location.pathname;      
        var sPage = sPath.substring(sPath.lastIndexOf('/') + 1);            
        sPage=sPage.toLowerCase();             
        if (sPage=='contact.aspx'){document.getElementById('nav_contact').className='menu_TOP_active';}    
        else if (sPage=='default.aspx' || sPage=='philadelphia_webdesign.aspx'){document.getElementById('nav_home').className='menu_TOP_active';}  
        else if (sPage=='portfolio.aspx' ){document.getElementById('nav_portfolio').className='menu_TOP_active';}  
        else if (sPage=='about.aspx'){document.getElementById('nav_about').className='menu_TOP_active';}  
        else if(sPage=='services.aspx' || sPage=='ecommerce.aspx' || sPage=='paypalshoppingcart.aspx' || sPage=='domainnameregistration.aspx' || sPage=='designprocess.aspx' || sPage=='websitepricing.aspx' || sPage=='training.aspx') {document.getElementById('nav_service').className='menu_TOP_active';}  
        else{document.getElementById('nav_home').className='menu_TOP_active';}       
}