function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_swapImage1() { //v3.0
	MM_swapImage('ImageShowHot','','image/showhot-huanbao.png',1)
	MM_swapImage('Imagehot1','','image/Left_Main_bar_HOT_huanbao1.gif',1)
}

function MM_swapImage2() { //v3.0
	MM_swapImage('ImageShowHot','','image/showhot-trancad.png',1)
	MM_swapImage('Imagehot2','','image/Left_Main_bar_HOT_transcad1.gif',1)
}

function MM_swapImage12() { //v3.0
	MM_swapImage('ImageShowHot','','image/showhot-gamma.png',1)
	MM_swapImage('Imagehot12','','image/Left_Main_bar_HOT_gamma1.gif',1)
}

function MM_swapImage3() { //v3.0
	MM_swapImage('ImageShowHot','','image/showhot-IIMS.png',1)
	MM_swapImage('Imagehot3','','image/Left_Main_bar_HOT_yigou1.gif',1)
}

function MM_swapImage4() { //v3.0
	MM_swapImage('ImageShowHot','','image/showhot-car.png',1)
	MM_swapImage('Imagehot4','','image/Left_Main_bar_HOT_hujiao1.gif',1)
}

function MM_swapImage5() { //v3.0
	MM_swapImage('ImageShowHot','','image/showhot-chuli.png',1)
	MM_swapImage('Imagehot5','','image/Left_Main_bar_HOT_chuli1.gif',1)
}

function MM_swapImage6() { //v3.0
	MM_swapImage('ImageShowHot','','image/showhot-shiliang.png',1)
	MM_swapImage('Imagehot6','','image/Left_Main_bar_HOT_shiliang1.gif',1)
}

function MM_swapImage7() { //v3.0
	MM_swapImage('ImageShowHot','','image/showhot-yingxiang.png',1)
	MM_swapImage('Imagehot7','','image/Left_Main_bar_HOT_yinxiang1.gif',1)
}

function MM_swapImage8() { //v3.0
	MM_swapImage('ImageShowHot','','image/showhot-shange.png',1)
	MM_swapImage('Imagehot8','','image/Left_Main_bar_HOT_shange1.gif',1)
}

function Layers_findObj(n, d) { //v4.0
	var p,i,x;  if(!d) d=document; if((p=n.indexOf('?'))>0&&parent.frames.length) {
	  d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
	if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=Layers_findObj(n,d.layers[i].document);
	if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function Layers_showHideLayers() { //v3.0
	var i,p,v,obj,args=Layers_showHideLayers.arguments;
	for (i=0; i<(args.length-2); i+=3) if ((obj=Layers_findObj(args[i]))!=null) { v=args[i+2];
	  if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
	  obj.visibility=v; }
}

function menuFix() {
	var sfEls = document.getElementById("nav").getElementsByTagName("li");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
		this.className+=(this.className.length>0? " ": "") + "sfhover";
		}
		sfEls[i].onMouseDown=function() {
		this.className+=(this.className.length>0? " ": "") + "sfhover";
		}
		sfEls[i].onMouseUp=function() {
		this.className+=(this.className.length>0? " ": "") + "sfhover";
		}
		sfEls[i].onmouseout=function() {
		this.className=this.className.replace(new RegExp("( ?|^)sfhover\\b"), 
"");
		}
	}
	loaddata();
}
window.onload=menuFix;