//标签切换
function tabSwitch(t, id , i, on, off, hasPage){
	var c = document.getElementById(id);
	if(t.className == on) return ;
	var lis = t.parentNode.getElementsByTagName("li");
	for(var j = 0;j<lis.length;j++){
		if(j==(i-1)){
			if(hasPage) document.getElementById(id+"_"+i).className = "";
			lis[j].className=on;
		}else{
			if(hasPage) document.getElementById(id+"_"+(j+1)).className = "hidden";
			lis[j].className=off;
		}
	}
}

/* 收起、展开评论内容 */
function showOrHide(t, id){
	var elStyle = (typeof id == "string") ? document.getElementById(id).style : id.style;
	if(t.className == "fold"){
		t.className = "unfold";
		t.title = "收起";
		elStyle.display = "block";
	}else{
		t.className = "fold";
		t.title = "展开";
		elStyle.display = "none";
	}
}