jQuery实现左右切换焦点图

演示图：

代码：

$(document).ready(function() {
  greyInitRedux();
  ieDropdownsNav();
  ieDropdownsFilter();
  itemViewer();
  jsTabsetInit();
  slider();
  headerTabs();
  carousel();
  emergencyClose();
  replyLinks();
  adjournLinks();
  zebra_strip_rows();
  visitor_site_slideshow();
 });
var carousel_round = 0;
/*-------------------------------------------
  Grey Initial Values
-------------------------------------------*/
function greyInitRedux() {
  $("input.filled, textarea.filled").focus(function(e){
    if(this.value == this.defaultValue)
    {
      $(this).removeClass('filled');
       this.value= '';
    }
    $(this).blur(function(f){
      if(this.value == this.defaultValue) {
        $(this).addClass('filled');
        } else if(this.value == "") {
          this.value = this.defaultValue;
          $(this).addClass('filled');
        }
      });
  })
}
/*-------------------------------------------
  IE6 CSS Main Nav Dropdowns
-------------------------------------------*/
function ieDropdownsNav() {
  if(document.all&&document.getElementById)
  {
    navRoot = document.getElementById('main-nav');
    if (!navRoot) { return false; }
    for(i=0; i<navRoot.childNodes.length; i++)
    {
      node = navRoot.childNodes[i];
      if (node.nodeName=='LI')
      {
        node.onmouseover=function()
        {
          this.className+=' over';
        }
        node.onmouseout=function()
        {
          this.className=this.className.replace(' over', '');
        }
      }
    }
  }
}
/*-------------------------------------------
  IE6 CSS Main Nav Dropdowns
-------------------------------------------*/
function ieDropdownsFilter() {
  if(document.all&&document.getElementById)
  {
    navRoot = document.getElementById('filter-drop');
    if (!navRoot) { return false; }
    for(i=0; i<navRoot.childNodes.length; i++)
    {
      node = navRoot.childNodes[i];
      if (node.nodeName=='DIV')
      {
        node.onmouseover=function()
        {
          this.className+=' over';
        }
        node.onmouseout=function()
        {
          this.className=this.className.replace(' over', '');
        }
      }
    }
  }
}
/*-------------------------------------------
  View More
-------------------------------------------*/
function itemViewer() {
  //$(document).delegate('#filter-drop a, .expandable > .load, .filter-nav a', 'click', function (e)
  //$(document).delegate('.expandable > .load, .filter-nav a', 'click', function (e)								 
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