/******************************************************
	-> 定位标签
	-> 作用：切换标签显示效果
	-> 参数：元素id
******************************************************/
function SwitchLabel(idx) {
	
	var id= window.document.getElementById(idx);
	id.style.backgroundPosition = "center bottom";
	return 0;
	
} //end SwitchLabel()

/******************************************************
	-> 商品分类
	-> 作用：显示隐藏子类与切换分类箭头标签
	-> 参数：箭头id,与魔盒id.
******************************************************/
function OpenClass(idx1,idx2) {
	var id1= window.document.getElementById(idx1);
	var id2= window.document.getElementById(idx2);
	
	if(id2.style.display == "block") {
		id1.style.backgroundPosition = "left top";
		id2.style.display = "none";
	} else if(id2.style.display == "none") {
		id1.style.backgroundPosition = "left bottom";
		id2.style.display = "block";
	}

	return 0;
} //end OpenClass()