怎么让IE8支持media，用respond.js没有效果

Answer 1

在所以页面的共用js文件后面添加如下代码：function processLowerIENavigate(){  var isIE = document.all ? 1 : 0;  if (isIE == 1)  {    if(navigator.userAgent.indexOf("MSIE7.0") > 0 || navigator.userAgent.indexOf("MSIE 8.0") > 0)    {    //  var doc=document;       var link=document_createElement_x_x_x("link");      link.setAttribute("rel", "stylesheet");      link.setAttribute("type", "text/css");      link.setAttribute("id", "size-stylesheet");      link.setAttribute("href", "");        var heads = document.getElementsByTagName_r("head");      if(heads.length)        heads[0].a(link);      else        document.documentElement.a(link);      document.write("      document.write("      }  } }var lowerIE8 = processLowerIENavigate();media_screen.js文件内容如下，直接从网上copy：function adjustStyle(width) {  width = parseInt(width);  if (width < 902) {//alert("<900");//alert(width);    $("#size-stylesheet").attr("href", "navigateLowerIE8.css");  } else {   // alert(">900"); //alert(width);    $("#size-stylesheet").attr("href", "");   }}$(function() {  adjustStyle($(this).width());  $(window).resize(function() {    adjustStyle($(this).width());  });});