var B=document.body;
function isIE(){
      return (document.all && window.ActiveXObject && !window.opera) ? true : false;
} 
function $(id){
	return document.getElementById(id);
}
function $N(Names){
	return document.getElementsByName(Names);
}
function C$(element){
	return document.createElement(element);
}

//--------------------------------网页下拉 伸缩广告-------------------------------------------------------------
function down_ad(id,cgTime,stTime,H,h,cH){   //参数依次为伸缩速度,停留时间,伸缩高度,初始高度,单位伸缩高度  
	 var obj=$(id).style;
     this.addCount=function() 
     { 
         h +=cH;
         obj.display = ""; 
         obj.height = h+"px"; 
         if(h>=H) //高度 
         { 
             setTimeout('this.noneAds()',stTime) 
			 return;
         }          
         setTimeout("addCount()",cgTime); 
     }     
     
     this.noneAds=function() 
     {      
         h -=cH;         
         if(h<=0) 
         { 
             obj.display = "none"; 
             return; 
         }
         obj.height =h+"px"; 
         setTimeout("noneAds()",cgTime); 
     } 	 
	 
         addCount();          
}

//------------------------------------随机浮动广告----------------------------------------------------------------
function randomFloat(x,y,dx,dy,width,height,src,closeSize,closeColor){
document.write('<div id="img" style="position:absolute; z-index:1000; margin:auto; left:'+x+'px; top:'+y+'px; ">'+src+'<div id="close" z-index:1001; style="cursor:pointer;font-family:Marlett; color:'+closeColor+'; position:absolute;font-size:'+closeSize+'px;right:4px;bottom:4px;"></div></div>');
var obj=$("img");
var Close=$("close");
with(Close.style){
	height=closeSize+2+'px';
	width=closeSize+2+'px';
	lineHeight=height;
	textAlign='center';
	paddingLeft='2px';
}
var timeout;
	this.float=function(){
	x+=dx;
	y+=dy;
	obj.style.left=document.body.scrollLeft+x+"px";
	obj.style.top=document.body.scrollTop+y+"px";
	dx=(document.body.clientWidth-x-width<0?-dx:dx);
	dy=(document.body.clientHeight-y-height<0?-dy:dy);
	dx=(x<0?-dx:dx);
	dy=(y<0?-dy:dy);
	timeout=setTimeout('float()',30);	
	}
	float();
obj.onmouseover=function(){clearTimeout(timeout);}
obj.onmouseout=function(){if(obj.style.display!="none"){timeout=setTimeout('float()',100);}else{return;}}
Close.onclick=function(){obj.style.display="none";}
}

//-----------------------------------js 图片轮换---标题在图片上的面透明样式----------------------------------------------------
function img_switch(receptacle,imgSrc,imgUrl,newsTitle,imgWidth,imgHeight,titleHeight,showTitle,showRim,rimColor,rimFill,rimWidth,imgButtonWidth,imgButtonHeight,imgButtonBg,imgButtonOverBg,speed){
var num=0;
var imgPlay;
count=imgSrc.length;
if(!showRim){rimWidth=0;rimFill=0;}//边框是否显示
var rim=C$('div');//外侧边框
$(receptacle).appendChild(rim);
with(rim.style){
	border=rimWidth+'px solid '+rimColor;
	width=imgWidth+rimFill*2+'px';
	height=imgHeight+rimFill*2+'px';
	margin='0px';
}
var img_div=C$('div');//装载图片的DIV
rim.appendChild(img_div);
with(img_div.style){
	width=imgWidth+'px';
	height=imgHeight+'px';
	margin=rimFill+'px';	
	overflow='hidden';
	zIndex=900;
}
var img_a=C$('a');//图片链接A标签
img_div.appendChild(img_a);
img_a.target='_blank';
img_a.id='img_a';
with(img_a.style){
	display='block';
	width=imgWidth+'px';
	height=imgHeight+'px';
	overflow='hidden';
}
var Img=C$('img');//图片
img_a.appendChild(Img);
Img.border='0';
Img.height=imgHeight;
Img.width=imgWidth;
Img.src='1.jpg';
Img.id='img_Id';
var o_img_div=C$('div');//标题框
img_div.appendChild(o_img_div);
o_img_div.id='o_img_div';
with(o_img_div.style){
	height=titleHeight+'px';
	lineHeight=titleHeight+'px';
	width=imgWidth+'px';
	background='#000000';
	position='relative';
	if (isIE()) {
      filter = "Alpha(Opacity=80)";
     } else {
      opacity = 0.8;
	  
     }
	 bottom=titleHeight+'px';
	
	overflow='hidden';	
}
for(i=count;i>0;i--){
	var img_button=C$('a');//数字按钮
	o_img_div.appendChild(img_button);
	img_button.id='img_button_'+i;
	with(img_button.style){
	position='relative';
	display='block';
	height=imgButtonHeight+'px';
	lineHeight=imgButtonHeight+'px';
	width=imgButtonWidth+'px';
	textAlign='center';
	background=imgButtonBg;
	if (isIE()) {
	styleFloat='right';
	}else{
	cssFloat='right';
	}
	marginRight='1px';	
	marginTop=Math.round((titleHeight-imgButtonHeight)/2)+'px';
	fontSize='12px';
	color='#ffffff';
	fontWeight='bold';
	cursor='pointer';	
	}
	img_button.innerHTML=i;
}	
var title_button=C$('a');//文字标题
o_img_div.appendChild(title_button);
title_button.id='title_button';
title_button.target='_blank';
with(title_button.style){
	position='relative';
	display='block';
	height=imgButtonHeight+'px';
	lineHeight=imgButtonHeight+'px';
	width=imgWidth-15-(imgButtonWidth+1)*count+'px';
	textAlign='left';
	textDecoration='none';
	if (isIE()) {
	styleFloat='right';
	}else{
	cssFloat='right';
	}
	marginRight='8px';	
	marginTop=Math.round((titleHeight-imgButtonHeight)/2)+'px';
	fontSize='12px';
	color='#ffffff';
	cursor='pointer';
	overflow='hidden';
	}
if(!showTitle){title_button.style.display='none'}
	
for(i=1;i<=count;i++){//按钮点击触发
		$('img_button_'+i).onclick=function(){clearTimeout(imgPlay); play(this);}
	}	
this.play=function(position){//开始播放
if(typeof(position)!='undefined')num=parseInt(position.innerHTML)-1;
if(isIE()){//---IE----
$('img_Id').style.filter='revealTrans(Duration=1,Transition='+Math.round(Math.random()*23)+')';
$('img_Id').filters[0].apply();
$('img_Id').filters[0].play();
$('img_Id').src=imgSrc[num];
$('title_button').innerHTML=newsTitle[num];
$('title_button').href=imgUrl[num];

for(j=1;j<=count;j++){
	$('img_button_'+j).style.backgroundColor=imgButtonBg;
}
$('img_button_'+(num+1)).style.backgroundColor=imgButtonOverBg;
}
else{//---其他浏览器---
$('img_Id').src=imgSrc[num];
$('title_button').innerHTML=newsTitle[num];
$('title_button').href=imgUrl[num];
for(j=1;j<=count;j++){
	$('img_button_'+j).style.backgroundColor=imgButtonBg;
}
$('img_button_'+(num+1)).style.backgroundColor=imgButtonOverBg;
}
$('title_button').title=$('title_button').innerHTML;
$('img_a').href=$('title_button').href;
num++;
num=num>=count?0:num;
imgPlay=setTimeout('play()',speed);
}
	$('title_button').onfocus=function(){this.blur();}
	$('title_button').onmouseover=function(){this.style.color='#7DBCFB';}
	$('title_button').onmouseout=function(){this.style.color='#fff';}
	play();	
}