$.fn.tab = function(){
	var tab = $(this), //选项容器
		title = tab.find('.tabs-title'),
		content = tab.find('.tabs-content-item'),
		currentIndex,
		itemCurrent;
	
	title.hover(function(){
		var currentTitle = $(this);
		
		title.removeClass('focus');
		currentTitle.addClass('focus');//为当前的选项标签添加类current
		currentIndex = title.index(currentTitle);
		itemCurrent = content.eq(currentIndex);
		itemCurrent.show();//显示当前选项标签所对应的内容
		content.not(itemCurrent).hide();
	})
	
	/*title.click(function(){
		return false;
	})*/
}