checkMobileVersion();
function checkMobileVersion()
{    
    ScreenWidth = screen.width;

    BrowserWidth =  window.innerWidth;
    BrowserHeight = window.innerHeight;    

    var browser = navigator.userAgent.toLowerCase();   
    if( ((BrowserWidth <= 320) && (BrowserHeight <= 480)) || (browser.indexOf('iPhone') != -1)){        
        document.location.href = "http://m.bestessays.com" + document.location.pathname + document.location.search;
    }
}