// JavaScript Document
function imgwh(obj,iw,ih){
	var objw = obj.width;
	var objh = obj.height;
	if(iw/ih>objw/objh){
		obj.style.height = ih+"px";
		obj.style.width = "auto";
	}else{
		obj.style.width = iw+"px";
		obj.style.height = "auto";
	}
}

/*************    top search    **************/
var topsf = 0;
function tops(theid){
	var id1 = document.getElementById(theid).getElementsByTagName("li");
	id1[topsf].className = "ons";
	for(var i=0;i<id1.length;i++){
		var theli = id1[i];
		theli.n = i;
		theli.onclick = function(){
			if(this.n!=topsf){
			  this.className = "ons";
			  id1[topsf].className = "";
			  topsf = this.n;
			}
		}
	}
}

/*****************     导航     **********************/
var navf = -1;
function nav1(theid){
	var navid = document.getElementById(theid).getElementsByTagName("li");
	for(var i=0; i<navid.length;i++){
		var thenav = navid[i];
		thenav.n = i;
		thenav.onmouseover = function(){
			for(var j=0; j<navid.length;j++){
				navid[j].className = "";
			}
			this.className = "onm";
		}
		thenav.onmouseout = function(){
			for(var j=0; j<navid.length;j++){
				navid[j].className = "";
			}
		}
	}
}

/*********    新闻控制    ***********/
var newsf = 0;
function indnew(thent,thenc){
	var newt = document.getElementById(thent).getElementsByTagName("li");
	for(var i=1;i<newt.length;i++){
		document.getElementById(thenc+i).style.display = "none";
	}
	for(var i=0;i<newt.length;i++){
		var theli = newt[i];
		theli.n = i;
		theli.onmouseover = function(){
			if(this.n!=newsf){
			  this.className = "ons";
			  newt[newsf].className = "";
			  document.getElementById(thenc+newsf).style.display = "none";
			  document.getElementById(thenc+this.n).style.display = "block";			
			  newsf = this.n;
			}
		}
	}
	
}

/*********    业内资料    ***********/
var ynf = 0;
function indyn(thent,thenc){
	var ynt = document.getElementById(thent).getElementsByTagName("li");
	ynt[ynf].className = "ons";
	for(var i=1;i<ynt.length;i++){
		document.getElementById(thenc+i).style.display = "none";
	}
	for(var i=0;i<ynt.length;i++){
		var theli = ynt[i];
		theli.n = i;
		theli.onmouseover = function(){
			if(this.n!=ynf){
			  this.className = "ons";
			  ynt[ynf].className = "";
			  document.getElementById(thenc+ynf).style.display = "none";
			  document.getElementById(thenc+this.n).style.display = "block";			
			  ynf = this.n;
			}
		}
	}
	
}

/*********    会展信息    ***********/
//var hzf = 0;
//function indhz(thent,thenc){
//	var hzt = document.getElementById(thent).getElementsByTagName("li");
//	for(var i=1;i<hzt.length;i++){
//		document.getElementById(thenc+i).style.display = "none";
//	}
//	for(var i=0;i<hzt.length;i++){
//		var theli = hzt[i];
//		theli.n = i;
//		theli.onmouseover = function(){
//			if(this.n!=hzf){
//			  this.className = "ons";
//			  hzt[hzf].className = "";
//			  document.getElementById(thenc+hzf).style.display = "none";
//			  document.getElementById(thenc+this.n).style.display = "block";			
//			  hzf = this.n;
//			}
//		}
//	}
//	
//}

/********     图片展示   *************/
var indimgf = 0;
var imgnum=indimgf+1,imgtime,img4aa,img2aa;
var imgs1li,imgs3li,imgs3a;
var imgInit;
function indimgshow(imgs1,imgs2,imgs3,imgs4){
	imgs1li = document.getElementById(imgs1).getElementsByTagName("li");
	imgs3li = document.getElementById(imgs3).getElementsByTagName("li");	
	imgs3a = document.getElementById(imgs3).getElementsByTagName("a");
	imgs3li[indimgf].className = "onm";
	img4aa = imgs4;  img2aa = imgs2;
	document.getElementById(imgs4).innerHTML = "<a href='"+imgs3a[indimgf].href+"' target='_blank'>"+imgs1li[indimgf].title+"</a>";
	for(var i=0;i<imgs3li.length;i++){
		var imgl = imgs3li[i];
		imgl.n = i;
		imgl.onmouseover = function(){
			if(this.n!=indimgf){
				this.className = "onm";
				imgs3li[indimgf].className = "";
				document.getElementById(imgs4).innerHTML = "<a href='"+imgs3a[this.n].href+"' target='_blank'>"+imgs1li[this.n].title+"</a>";
				if (document.all){
					document.getElementById(imgs2).getElementsByTagName("img")[0].filters.revealTrans.Transition=10;
					document.getElementById(imgs2).getElementsByTagName("img")[0].filters.revealTrans.apply();
					imgInit = document.getElementById(img2aa).getElementsByTagName("img")[0];
					playTran();			
				}
				document.getElementById(imgs2).getElementsByTagName("img")[0].src = imgs1li[this.n].id;
				
				document.getElementById(imgs2).getElementsByTagName("a")[0].href = imgs3a[this.n].href;
				indimgf = this.n;
				if(indimgf>=imgs3li.length){
					imgnum = 0;
				}else{
					imgnum = indimgf+1;
				}
			}
			clearInterval(imgtime);
		}
		imgl.onmouseout = function(){
			imgtime = setInterval("imgsett()",5000);
		}
	}
	imgtime = setInterval("imgsett()",5000);
}
function playTran(){
	if (document.all)
		imgInit.filters.revealTrans.play();
}
function imgsett(){
	if(indimgf>=imgs3li.length-1){
		imgnum = 0;
	}else{
		imgnum = indimgf+1;
	}
	imgs3li[imgnum].className = "onm";
	imgs3li[indimgf].className = "";
	document.getElementById(img4aa).innerHTML = "<a href='"+imgs3a[imgnum].href+"' target='_blank'>"+imgs1li[imgnum].title+"</a>";
	if (document.all){
		document.getElementById(img2aa).getElementsByTagName("img")[0].filters.revealTrans.Transition=10;
		document.getElementById(img2aa).getElementsByTagName("img")[0].filters.revealTrans.apply();
		imgInit = document.getElementById(img2aa).getElementsByTagName("img")[0];
		playTran();			
	}
	document.getElementById(img2aa).getElementsByTagName("img")[0].src = imgs1li[imgnum].id;
	document.getElementById(img2aa).getElementsByTagName("a")[0].href = imgs3a[imgnum].href;
	indimgf = imgnum;
}