// JavaScript Document
function multiRes()
{
    var cssStyle;
    var operating_sys;
    
    //test operating system
    if(navigator.userAgent.indexOf('Win') != -1)
    {
        operating_sys = "_vista";
    }
    
    // setup stylesheet based on resolution
    if(screen.width >851 && screen.width <=1024) //if resolution is 1024 wide
    {
        cssStyle = "/site/design/css/1024w_main.css";
    }
    else if(screen.width <=850) // if resolution is 800 wide
    {
        cssStyle = "/site/design/css/800w_main.css";
    }
    else if(screen.width >1024) //if resolution is greater than 1024
    {
        cssStyle = "/site/design/css/1152w_main.css";
    }

    return '<link href="' + cssStyle + '" rel="stylesheet" type="text/css">';
}