//核心代码 
function admov(element){ 
	if(arguments.length>1){ 
		for(var i=0,elements=[],length=arguments.length;i<length;i++) 
		elements.push(admov(arguments[i])); 
		return elements; 
	} 
	if(typeof element=="string") 
	return document.getelementbyid(element); 
	else 
	return element; 

} 
function.prototype.bind=function(object){ 
	var method=this; 
	return function(){ 
		method.apply(object,arguments); 
	} 
} 
var class={ 
	create:function(){ 
		return function(){ 
		this.initialize.apply(this,arguments); 
		} 
	} 
} 
object.extend=function(destination,resource){ 
	for(var property in resource){ 
		destination[property]=resource[property]; 
	} 
	return destination; 
} 
//对联广告类 
var float_ad=class.create(); 
float_ad.prototype={ 
initialize:function(id,content,top,left,width){ 
	document.write('<div id='+id+' style="position:absolute;">'+content+'<span style=\"float:left; text-align:center; width:'+width+'px;\"><a onclick=\"document.getelementbyid(\''+id+'\').style.display=\'none\'\" title=\"关闭\">×</a></span></div>'); 
	this.id=admov(id); 
	this.top=top; 
	var layout_width = 980;
	var client_width = null;
	if(!!left){
		if(document.body.clientwidth < layout_width + 2*width +16){
			this.id.style.left="8px";
		}else{
			this.id.style.left=(document.documentelement.clientwidth/2)-(layout_width/2) - width - 8 +"px"; 
		}
	}else{ 
		if(document.documentelement.clientwidth < layout_width + 2*width +16){
			this.id.style.left=document.documentelement.clientwidth- 8 - width +"px"; 
		}else{
			this.id.style.left=(document.documentelement.clientwidth/2)+(layout_width/2) + 8 +"px"; 
		}; 
	} 
	this.intervalid=setinterval(this.scroll.bind(this),20); 
	this.id.style.top=top+"px";
}, 
scroll:function(){ 
	this.stmnstartpoint = parseint(this.id.style.top, 10); 
	this.stmnendpoint =document.documentelement.scrolltop+ this.top; 
	if(navigator.useragent.indexof("chrome")>0){ 
		this.stmnendpoint=document.body.scrolltop+this.top; 
	} 
	if ( this.stmnstartpoint != this.stmnendpoint ) { 
		this.stmnscrollamount = math.ceil( math.abs( this.stmnendpoint - this.stmnstartpoint ) / 15 ); 
		this.id.style.top = parseint(this.id.style.top, 10) + ( ( this.stmnendpoint<this.stmnstartpoint ) ? -this.stmnscrollamount : this.stmnscrollamount )+"px"; 
	} 
	} 
}

//漂浮广告类 
var move_ad=class.create(); 
move_ad.prototype={ 
initialize:function(imgoption,initposition,delay){ 
this.imgoptions=object.extend({url:"",link:"",alt:"",width:60,height:60},imgoption||{}); 
this.adposition=object.extend({left:40,top:120},initposition||{}); 
this.delay =delay; 
this.step = 1; 
this.herizonflag=true; 
this.verticleflag=true; 
this.id="ad_move_sg"; 
var vhtmlstring="<div id='"+this.id+"' style='position:absolute; left:"+this.adposition.left+"px; top:"+this.adposition.top+"px; width:"+this.imgoptions.width+"px;"; 
vhtmlstring+=" height:"+this.imgoptions.height+"px; z-index:1000;'><a href='"+this.imgoptions.link+"' target='_blank' title='"+this.imgoptions.alt+"'><img src='"+this.imgoptions.url+"' width='"+(this.imgoptions.width-15)+"' height='"+this.imgoptions.height+"' style='border:none;' alt='"+this.imgoptions.alt+"' /></a><a style=\"display:block; text-align:center; width:15px;height:40px;position:absolute;top:0px;right:0px;font-size:12px;line-height:16px;vertical-align:top;color:#333;\" onclick=\"document.getelementbyid('"+this.id+"').style.display=\'none\'\" title=\"关闭\">关闭</a></div>"; 
document.write(vhtmlstring); 
this.id=admov(this.id); 
this.intervalid=setinterval(this.scroll.bind(this),this.delay); 
this.id.onmouseover=this.stop.bind(this); 
this.id.onmouseout=this.start.bind(this); 
}, 
scroll:function(){ 
var l=t=0; 
var b=document.documentelement.clientheight-this.id.offsetheight; 
var r=document.documentelement.clientwidth-this.id.offsetwidth; 
this.id.style.left=this.adposition.left+document.documentelement.scrollleft+"px"; 
this.id.style.top=this.adposition.top+document.documentelement.scrolltop+"px"; 
this.adposition.left =this.adposition.left + this.step*(this.herizonflag?1:-1); 
if (this.adposition.left < l) { this.herizonflag = true; this.adposition.left = l;} 
if (this.adposition.left > r){ this.herizonflag = false; this.adposition.left = r;} 
this.adposition.top =this.adposition.top + this.step*(this.verticleflag?1:-1); 
if(this.adposition.top <= t){ this.verticleflag=true; this.adposition.top=t;} 
if(this.adposition.top >= b){ this.verticleflag=false; this.adposition.top=b; } 
}, 
stop:function(){ 
clearinterval(this.intervalid); 
}, 
start:function(){ 
this.intervalid=setinterval(this.scroll.bind(this),this.delay); 
} 
}