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

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

function findObj(n, d){
	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=findObj(n,d.layers[i].document);
	if(!x && d.getElementById) x=d.getElementById(n); return x;
}

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


function setFocus(ID,t){
function $(id) {return document.getElementById(id);}
function $$(tag,obj){return (typeof obj=='object'?obj:$(obj)).getElementsByTagName(tag);}
var n='';
function showPics(num){
	if(n===num) return true;
	if(n==='') n=0;
	else n=num;
	var pics=$$('ul',ID)[0];
	var tit=$$('div',pics)[num];
	if(!pics.style.left){pics.style.left = 0+'px';}
	if(!tit.style.bottom||parseInt(tit.style.bottom)>-33){tit.style.bottom = -33+'px';}
	var endX=-num*$$('div',ID)[0].clientWidth;
	var goimg=function(){
		X=parseInt(pics.style.left);
		if(pics.movement){clearTimeout(pics.movement);}
		if(parseInt(pics.style.left)==endX) return true;
		if((endX-X)>0) X+=Math.ceil((endX-X) / 10);
		else X+=Math.floor((endX-X) / 10);
		pics.style.left=X+'px';
		pics.movement = setTimeout(goimg, 5);
	}
	var gotit=function(){
		var y=parseInt(tit.style.bottom);
		if(tit.movement){clearTimeout(tit.movement);}
		if(y==0) return true;
		y+=Math.ceil((0-y) / 10);
		if(parseInt(pics.style.left)==endX) tit.style.bottom=y+'px';
		if(y<0) tit.movement = setTimeout(gotit, 16);
	}
	goimg();
	gotit();
}
function classNormal(){
	var focusBtnList = $$('li',$$('ul',ID)[1]);
	for (var i = 0; i < focusBtnList.length; i++){
		focusBtnList[i].className = '';
	}
}
function focusChange(){
	var focusBtnList = $$('li',$$('ul',ID)[1]);
	for (var i = 0; i < focusBtnList.length; i++){
		focusBtnList[i].I=i;
		focusBtnList[i].onmouseover = function(){
			showPics(this.I);
			classNormal();
			focusBtnList[this.I].className = 'current';
		}
	}
}
var autoFocusChange=function(){
	if(atuokey) return;
	var focusBtnList = $$('li',$$('ul',ID)[1]);
	for (var i = 0; i < focusBtnList.length; i++){
		if(focusBtnList[i].className == 'current'){
			var currentNum = i;
		}
	}
	if(currentNum<focusBtnList.length-1){
		showPics(currentNum+1);
		classNormal();
		focusBtnList[currentNum+1].className = 'current';
	} else if(currentNum==focusBtnList.length-1){
		showPics(0);
		classNormal();
		focusBtnList[0].className = 'current';
	}
}
var atuokey = '';
function init(){
	var ul=$$('ul',ID)[0];
	var li=$$('li',ul);
	var NUM=li.length;
	var wid=$('loading')?$$('div',ID)[1].clientWidth:$$('div',ID)[0].clientWidth;ul.style.width=wid*NUM+'px';
	for(var i=0;i<NUM;i++){
		var a=li[i].getElementsByTagName('a')[0];
		var img=li[i].getElementsByTagName('img')[0];
		li[i].innerHTML=li[i].innerHTML+'<div><span></span><a href="'+a+'">'+img.alt+'</a></div>';
	}
	var s='<div class="num"><ul>';
	for(var i=0;i<NUM;i++){s+='<li>'+(i+1)+'</li>'}
	s+='</ul></div>';
	$(ID).innerHTML+=s;
	$(ID).removeChild($('loading'));
	showPics(0);
	classNormal();
	$$('li',$$('ul',ID)[1])[0].className = 'current';
	$(ID).onmouseover = function(){
		atuokey = true;
		clearInterval(auto);
	}
	$(ID).onmouseout = function(){
		atuokey = false;
		auto=setInterval(autoFocusChange, T);
	}
}
var T=t*1000;
var auto='';
init();
focusChange();
auto=setInterval(autoFocusChange, T);
};


window.onload =  function(){
	preloadImages('../images/pic/pic_1.jpg','../images/pic/pic_2.jpg','../images/pic/pic_3.jpg','../images/pic/pic_4.jpg','../images/nav/products_hover.jpg','../images/nav/sample_hover.jpg','../images/nav/test_hover.jpg','../images/nav/about_hover.jpg','../images/nav/news_hover.jpg','../images/nav/hr_hover.jpg','../images/nav/contacts_hover.jpg');
	setFocus('ad_focus',8);
}


function OnEnter(field){
	field.focus();
	if(field.value == field.defaultValue){
		field.value = "";
	} 
}

function OnExit(field){
	if(field.value == ""){
		field.value = field.defaultValue;
	}
}


$(function(){
	$("#nav a:first,#con li:first").addClass("on");
	$("#nav a").each(function(i){
		$(this).mouseover(function(){
			$(this).addClass("on").parent().siblings().find("a").removeClass("on");
			$($("#con li")[i]).show().siblings().hide();
		})
	})
})


function googleTranslateElementInit() {
	new google.translate.TranslateElement({
	pageLanguage: 'zh-CN',
	multilanguagePage: true,
	layout: google.translate.TranslateElement.InlineLayout.SIMPLE
	}, 'google_translate_element');
}