$(document).ready(function(){
	
		$("#mainNav > ul > .station").hover(function(){
			showSubGnb('station');
		},function(){
			hideSubGnb('station');
		});

		$("#mainNav > ul > .personal").hover(function(){
			showSubGnb('personal');
		},function(){
			hideSubGnb('personal');
		});
		
		$("#mainNav > ul > .ranking").hover(function(){
			showSubGnb('ranking');
		},function(){
			hideSubGnb('ranking');
		});
		
		/*
		$("#mainNav > ul > .broadcast").hover(function(){
			showSubGnb('broadcast');
		},function(){
			hideSubGnb('broadcast');
		});
		*/
		$("#stationMenu").hover(function(){
			showSubGnb('station');	
		},function(){
			hideSubGnb('station');
		});
		
		$("#personalMenu").hover(function(){
			showSubGnb('personal');	
		},function(){
			hideSubGnb('personal');
		});
		
		$("#rankingMenu").hover(function(){
			showSubGnb('ranking');	
		},function(){
			hideSubGnb('ranking');
		});
		
		$("#broadcastMenu").hover(function(){
			showSubGnb('broadcast');	
		},function(){
			hideSubGnb('broadcast');
		});
		
	});
	
	
	function showSubGnb(tag)
	{
		$("#" + tag + "Menu").show();
		$("#mainNav > ul > ." + tag + " > a").css("backgroundPositionY","-50px");
	}
	
	function hideSubGnb(tag)
	{
		$("#" + tag + "Menu").hide();
		$("#mainNav > ul > ." + tag + " > a").css("backgroundPositionY","0px");
	}