var __content=document.getElementById("block_center");
var __sidebar=document.getElementById("pub_left3");
var srTop;
var srBottom;
var oldPosX;
var oldPosY;

function initStickyAd(){
	srTop=__content.offsetTop+0;
	srBottom=srTop+__content.offsetHeight-__sidebar.offsetHeight;
	//srTop= 400;
	if(__content.offsetHeight>__sidebar.offsetHeight){
		__sidebar.style.position="absolute";
		__sidebar.style.top=srTop+"px";
		var A=__content.offsetWidth;
		var C=document.getElementsByTagName("table");
		for(var B=0;B<C.length;B++){
			if(C[B].offsetWidth>A){A=C[B].offsetWidth}
		}
		//__sidebar.style.left=__content.offsetLeft+A+"px";
		__sidebar.style.left=0;
		posAdAbsolute()
	}else{
		__sidebar.style.position="static";
		__sidebar.style.top=0;
		__sidebar.style.left=0
	}
}


function posAdAbsolute(){
var A=(window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop||0);
A = A -0;
if(A!=oldPosY){
	if(A<srTop){
		__sidebar.style.top=srTop+"px";
	}else{
		if(A<srBottom){
			__sidebar.style.top=A+"px";
		}else{
			__sidebar.style.top=srBottom+"px";
		}
	}
	oldPosY=A;
}
}


function posAdFixed(){}
	if(__sidebar!=null){
		initStickyAd();
		document.onload=initStickyAd;
		try{if(isKonqueror){throw"Error"}
		window.onscroll=posAdAbsolute}
		catch(e){window.setInterval(posAdAbsolute,1)}
		window.onresize=function(){
			oldPosY=null;
			initStickyAd();
	}
};