// 添加内容注意编码
var dhl={
	/*
	图片等比例缩小
	obj        元素
	MAX_WIDTH  宽
	MAX_HEIGHT 高
	IMG_MARGIN 外边距
	autoImgSize(this,300,200,5);
	*/
	$:function(id){
		if(typeof id=='string'){return document.getElementById(id);}
		else{return id;}
	},
	autoImgSize:function(obj,MAX_WIDTH,MAX_HEIGHT,IMG_MARGIN){
		var dImg=new Image();
		dImg.onload=function(){
			var w=this.width;
			var h=this.height;
			//对比图片宽高是否超出
			if(w<MAX_WIDTH && h<MAX_HEIGHT){
				obj.width=w;
						obj.height=h;
			}else{
				
				if (w>MAX_WIDTH){
				//对比图片宽
					obj.width  = MAX_WIDTH;
					//alert(obj.height)
					obj.height = (dImg.height*MAX_WIDTH)/dImg.width;
					var h2 = obj.height;
					//设置完宽,高超出时
					if (h2>MAX_HEIGHT){
						obj.height=MAX_HEIGHT; obj.width=(obj.width*MAX_HEIGHT)/h2;
					}
					
				}
				else{
				//对比图片高
					obj.height=MAX_HEIGHT;
					obj.width = (dImg.width*MAX_HEIGHT)/dImg.height;
					var w2=obj.width;
					if (w2>MAX_WIDTH){
						obj.width=MAX_WIDTH; obj.height=(obj.height*MAX_WIDTH)/w2;
					}
				}
			}
			//设置外边距
			obj.style.marginLeft=IMG_MARGIN+(MAX_WIDTH-obj.width)/2+'px';
			obj.style.marginTop=IMG_MARGIN+(MAX_HEIGHT-obj.height)/2+'px';
		}
		dImg.src=obj.src;
		},
		/*
		图片等比例缩小结束
		*/
		tpslider:function(txt,url){
				//nb-txt
				//nb-pic
				var obj1 = this.$("nb-txt")
				var obj2 = this.$("nb-img")
				if (obj1 && obj2){
							obj1.innerHTML = txt;
							obj2.src = url;
				}
		},
		setTab:function(name,cursel,n){
				for(i=1;i<=n;i++){
						var menu=document.getElementById(name+i);
						var con=document.getElementById("con_"+name+"_"+i);
						menu.className=i==cursel?"hover":"";
						con.style.display=i==cursel?"block":"none";
				}
		},
		setTab2:function(name,cursel,n){
				for(i=1;i<=n;i++){
						//var menu=document.getElementById(name+i);
						var con=document.getElementById("con_"+name+"_"+i);
						//menu.className=i==cursel?"hover":"";
						con.style.display=i==cursel?"block":"none";
				}
		},nav:function(id){
					var obj = this.$(id);
					if (!obj) {return false;}
					var objArr = obj.getElementsByTagName("li");
					//alert(objArr.length);
					//alert(objArr[1].className);
					for (var i=0;i< objArr.length;i++){
						objArr[i].onmousemove = function(){
								this.className = 'over';
						}
						objArr[i].onmouseout = function(){
								this.className = '';
						}
					}
		},aotoDiv:function(objArr){
				var dHeight=0;
				for(var i=0;i<objArr.length;i++){
					if(this.$(objArr[i])){
						if(this.$(objArr[i]).clientHeight>dHeight){dHeight=this.$(objArr[i]).clientHeight;}
					}
				}
				for(var i=0;i<objArr.length;i++){
					if(this.$(objArr[i])){
						this.$(objArr[i]).style.height=dHeight+"px";
					}
				}
			},productMenu:function(id){
					var obj = this.$('p-menu');
					if (!obj){return false;}
					var objArr = obj.childNodes;
					for (var i=0;i< objArr.length;i++){
								objArr[i].className = '';
					}
					id.className = 'over';
					//alert(objArr.length);
			},toClassName:function(id){
					var obj = this.$(id);
					if (!obj){return false;}
					var objArr = obj.childNodes;
					for (var i=0;i< objArr.length;i++){
							if(objArr[i]){
									var objli = objArr[i].getElementsByTagName("li")
									if(objli){
											objlicount = objli.length;
											if (objlicount > 0){
														objli[objlicount-1].className = 'b';
											}
									}
							}
					}
			}
	}
$(document).ready(function(){
	// 主导航
		if($("#h-nav")){
			var _over = null;
			if ($("#nav-01").attr("class") == 'over'){
				$("#nav-01 a img").attr("src","style/img/nav1-hover.jpg");
				_over='1';
			}
			if ($("#nav-02").attr("class") == 'over'){
				$("#nav-02 a img").attr("src","style/img/nav2-hover.jpg");
				_over='2';
			}
			if ($("#nav-03").attr("class") == 'over'){
				$("#nav-03 a img").attr("src","style/img/nav3-hover.jpg");
				_over='3';
			}
			if ($("#nav-04").attr("class") == 'over'){
				$("#nav-04 a img").attr("src","style/img/nav4-hover.jpg");
				_over='4';
			}
			if ($("#nav-05").attr("class") == 'over'){
				$("#nav-05 a img").attr("src","style/img/nav5-hover.jpg");
				_over='5';
			}
			if ($("#nav-06").attr("class") == 'over'){
				$("#nav-06 a img").attr("src","style/img/nav6-hover.jpg");
				_over='6';
			}

			$("#h-nav ul li a").focus(function(){ this.blur();})
			$("#h-nav ul li a img").each( function(i){
				$(this).attr("id","nav-img-"+i);
			});
			$("#h-nav ul li").mousemove(function(){
				$("#nav-01 a img").attr("src","style/img/nav1.jpg");
				$("#nav-02 a img").attr("src","style/img/nav2.jpg");
				$("#nav-03 a img").attr("src","style/img/nav3.jpg");
				$("#nav-04 a img").attr("src","style/img/nav4.jpg");
				$("#nav-05 a img").attr("src","style/img/nav5.jpg");
				$("#nav-06 a img").attr("src","style/img/nav6.jpg");
				$("#h-nav ul li div").hide();
				$("#h-nav ul li").removeClass("over");
				$(this).find("div").show();
				$(this).addClass("over");
				if ($("#nav-01").attr("class") == 'over') $("#nav-01 a img").attr("src","style/img/nav1-hover.jpg");
				if ($("#nav-02").attr("class") == 'over') $("#nav-02 a img").attr("src","style/img/nav2-hover.jpg");
				if ($("#nav-03").attr("class") == 'over') $("#nav-03 a img").attr("src","style/img/nav3-hover.jpg");
				if ($("#nav-04").attr("class") == 'over') $("#nav-04 a img").attr("src","style/img/nav4-hover.jpg");
				if ($("#nav-05").attr("class") == 'over') $("#nav-05 a img").attr("src","style/img/nav5-hover.jpg");
				if ($("#nav-06").attr("class") == 'over') $("#nav-06 a img").attr("src","style/img/nav6-hover.jpg");
			})
			$("#h-nav ul li").mouseout(function(){
				$("#nav-01 a img").attr("src","style/img/nav1.jpg");
				$("#nav-02 a img").attr("src","style/img/nav2.jpg");
				$("#nav-03 a img").attr("src","style/img/nav3.jpg");
				$("#nav-04 a img").attr("src","style/img/nav4.jpg");
				$("#nav-05 a img").attr("src","style/img/nav5.jpg");
				$("#nav-06 a img").attr("src","style/img/nav6.jpg");
				if(_over){
					$("#nav-0"+_over+" a img").attr("src","style/img/nav"+_over+"-hover.jpg");
				}
				$("#h-nav ul li").removeClass("over");
				$("#h-nav ul li div").hide();
			})
	}
})
// 预先加载图片
var loadImage=new Array()
function preloadimages(){
	if (document.images){
		for (i=0;i<preloadimages.arguments.length;i++){
			loadImage[i]=new Image()
			loadImage[i].src=preloadimages.arguments[i]
		}
	}
}
preloadimages("style/img/nav1-hover.jpg","style/img/nav2-hover.jpg","style/img/nav3-hover.jpg","style/img/nav4-hover.jpg","style/img/nav5-hover.jpg","style/img/nav6-hover.jpg")