function ieHover() {
  var cssRule;
  var newSelector;

  for (var i = 0; i < document.styleSheets.length; i++) {
    for (var x = 0; x < document.styleSheets[i].rules.length; x++) {
      cssRule = document.styleSheets[i].rules[x];
      if (cssRule.selectorText.indexOf("LI:hover") >= 0) {
        newSelector = cssRule.selectorText.replace(/LI:hover/gi, "LI.iehover");
        document.styleSheets[i].addRule(newSelector, cssRule.style.cssText);
      }
    }
  }


  var getElm = null;

  if(document.getElementById("nav")!=null){
	  getElm = document.getElementById("nav").getElementsByTagName("LI");
  }else{
	  return;
  }

  for (var i = 0; i < getElm.length; i++) {
    getElm[i].onmouseover = function() {
      this.className += " iehover";
    }
    getElm[i].onmouseout = function() {
      this.className = this.className.replace(new RegExp(" iehover\\b"), "");
    }
  }
}

if (window.attachEvent) window.attachEvent("onload", ieHover);