$(function(){

   resizeImg();
  
  //图片居中显示
 $(window).resize(function() {
   resizeImg();
  })
  
})

function resizeImg(){
     var maxWidth = $(window).width() > 970 ? $(window).width():970;
     var leftMargin = (1600 - maxWidth)/2;
     $(".banner img").css({"left":-leftMargin});
     
}  
function setHomePage() {
    var host = location.href;
    host = host.replace("//", "#");
    host = host.substr(0, host.indexOf("/")).replace("#", "//");
    if (document.all) {
        document.body.style.behavior = 'url(#default#homepage)';
        document.body.setHomePage(host);
    }
    else if (window.sidebar) {
        if (window.netscape) {
            try {
                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
            }
            catch (e) {
                alert("该操作被浏览器拒绝，如果想启用该功能，请在地址栏内输入 about:config,然后将项 signed.applets.codebase_principal_support 值该为true");
            }
        }
        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
        prefs.setCharPref('browser.startup.homepage', host);
    }
}


function addFavorite() {
    var title = document.title;
    var url = location.href;
    if (window.sidebar) {
        window.sidebar.addPanel(title, url, "");
    }
    else if (document.all) {
        window.external.AddFavorite(url, title);
    }
    else {
        return true;
    }
}