function $id(id){return document.getElementById(id);}
function $child(){
	var o=(typeof(arguments[0])=='object')?(arguments[0].childNodes):$id(arguments[0]).childNodes,oArray=[];
	for(var i=0,j=o.length;i<j;i++){if(o[i].nodeType==1)oArray.push(o[i]);else continue;}return oArray;
}
function $pos(o){
	var _w=o.offsetWidth,_h=o.offsetHeight,_l=o.offsetLeft,_t=o.offsetTop;
	while(o=o.offsetParent){_l+=o.offsetLeft;_t+=o.offsetTop}
	_t+=_h;
	return {_width:_w,_height:_h,_left:_l,_top:_t}
}
function funNav(){
	var bodyWidth=document.documentElement.clientWidth || document.body.clientWidth;
	var objUl1=$id('nav').getElementsByTagName('ul')[0];
	var objLi1=$child(objUl1);
	var objUl1Offset=$pos(objUl1);
	var objUl1OffsetRight=bodyWidth-objUl1Offset['_left']-objUl1Offset['_width'];
	for(var i=0,j=objLi1.length;i<j;i++){
		objLi1[i].onmouseover=function(){
			var objA1=this.getElementsByTagName('a')[0];
			var objUl2=this.getElementsByTagName('ul')[0];
			if(objA1 && objA1.className!='s'){
				objA1.style.background='#FF8A00';
			}
			if(objUl2){
				var objLi2=objUl2.getElementsByTagName('li');
				this.style.position='relative';
				objUl2.style.width=objLi2.length*107+'px';
				objUl2.style.position='absolute';
				objUl2.style.left='0';
				objUl2.style.top='20px';
				objUl2.className='';
				var objUl2Offset=$pos(objUl2);
				var objUl2OffsetRight=bodyWidth-objUl2Offset['_left']-objUl2Offset['_width'];
				if(objUl2OffsetRight<objUl1OffsetRight){
					this.style.position='';
					objUl2.style.left='';
					objUl2.style.right='0';
				}
			}
		}	
		objLi1[i].onmouseout=function(){
			var objA1=this.getElementsByTagName('a')[0];
			var objUl2=this.getElementsByTagName('ul')[0];
			if(objA1 && objA1.className!='s')objA1.style.background='#000000';
			if(objUl2)objUl2.className='hidden';
		}
	}
}
function sendMailTo(name,company,cn){
	this.name=name || 'sales';
	this.company=company || 'zongyi';
	this.cn=cn || 'cn';
	location.replace('mailto:'+this.name+'@'+this.company+'.'+this.cn);
}