// JavaScript Document
         //图片滚动展示 Start
         var counts = 4;
         img1 = new Image();
         img1.src = '/image/main_jpg1.jpg';
         img2 = new Image();
         img2.src = '/image/main_jpg2.jpg';
         img3 = new Image();
         img3.src = '/image/main_jpg3.jpg';
         img4 = new Image();
         img4.src = '/image/main_jpg4.jpg'; 
		         
         var smallImg = new Array();
         //小图
         smallImg[0] = '/image/index_adb1.gif';
         smallImg[1] = '/image/index_adb2.gif';
         smallImg[2] = '/image/index_adb3.gif';
		 smallImg[3] = '/image/index_adb4.gif';
         //链接地址
         url1 = new Image();
         url1.src = '';
         url2 = new Image();
         url2.src = '';
         url3 = new Image();
         url3.src = '';
		 url4 = new Image();
         url4.src = '';
         //alt值
         alt1 = new Image();
         alt1.alt = '约顿机房空调';
         alt2 = new Image();
         alt2.alt = '约顿机房空调';
         alt3 = new Image();
         alt3.alt = '约顿机房空调';
		 alt4 = new Image();
         alt4.alt = '约顿机房空调';
         var nn = 1;
         var key = 0;
         function change_img() {
          if (key == 0) {
           key = 1;
          } else if (document.all) {
           document.getElementById("pic").filters[0].Apply();
           document.getElementById("pic").filters[0].Play(duration = 2);
          }
          eval('document.getElementById("pic").src=img' + nn + '.src');
          eval('document.getElementById("url").href=url' + nn + '.src');
          eval('document.getElementById("pic").alt=alt' + nn + '.alt');
          if (nn == 1) {
           document.getElementById("url").target = "_blank";
           document.getElementById("url").style.cursor = "pointer";
          } else {
           document.getElementById("url").target = "_blank"
           document.getElementById("url").style.cursor = "pointer"
          }
          for ( var i = 1; i <= counts; i++) {
           document.getElementById("xxjdjj" + i).className = 'axx';
          }
          document.getElementById("xxjdjj" + nn).className = 'bxx';
          nn++;
          if (nn > counts) {
           nn = 1;
          }
          tt = setTimeout('change_img()', 7000);
         }
         function changeimg(n) {
          nn = n;
          window.clearInterval(tt);
          change_img();
         }
         function ImageShow() {
          document.write('<div class="picshow_main">');
          document.write('<div><a id="url"><img id="pic" class="imgbig" /></a></div>');
          document.write('<div class="picshow_change">');
          for ( var i = 0; i < counts; i++) {
           document.write('<a href="javascript:changeimg(' + (i + 1)
             + ');" id="xxjdjj' + (i + 1)
             + '" class="axx" target="_self"><img src="' + smallImg[i]
             + '"></a>');
          }
          document.write('</div></div>');
          change_img();
         } //图片滚动展示 End