function towhere(val){
	if((val==1 && (Oslide.num+1)<Oslide.limit) || val==-1 && Oslide.num>0 ){
		var m = Oslide.move(val);
		if(Oslide.limit==m) m = 0;
	}
}
var videoNum = 1;
function showVideo(val){
	videoNum += val;
	var n = ss("#videoList li");
	if(videoNum>=0 && videoNum<n.length){
		var i=0;
		while(n[i]){
			if(i==videoNum){ 
				if(n[i-1]) n[i-1].className = "first";
				n[i].className = "second";
				if(n[i+1]) n[i+1].className = "third";
			}else if(i>(videoNum+1) || i<(videoNum-1)){
				n[i].className = "none";
			}
			i++;
		}
		VideoOver();
	}else videoNum -= val;	
}
function VideoOver(){
	var n = ss("#videoList .second img");	
	n[0].onmouseover = function(){
		var pos = findPos($("videoList"));
		$("play_btn").style.left = (pos[0]+113)+"px";
		$("play_btn").style.top = (pos[1]+31)+"px";		
		$("play_btn").style.display = "block";
		sobj = this;
	}
	n[0].onmouseout = function(){
		$("play_btn").style.display = "none";
	}
	var n = ss("#videoList .first img");
	if(n[0]) n[0].onmouseover = null;
	var n = ss("#videoList .third img");
	if(n[0]) n[0].onmouseover = null;
}
window.onload=function(){
	var result = ww(document.body,'.preview');
	var i=0;
	while(result[i]){
		result[i].onmouseover = function(){previewOver(this);};
		result[i].onmouseout  = function(){previewOut();};
		i++;
	}
	var result = ww(document.body,'.previewBlog');
	var i=0;
	while(result[i]){
		result[i].onmouseover = function(){previewOver(this);};
		result[i].onmouseout  = function(){previewOut();};
		i++;
	}	
}