function Tab(skin, tab)
{	
	changeSkin(skin);
	changeTab(tab);
}

//改变样式
function changeSkin(skin)
{
	var objSkin = document.getElementById(skin);
	
	var objMon = document.getElementById("Mon");
	var objTue = document.getElementById("Tue");
	var objWen = document.getElementById("Wen");
	var objThu = document.getElementById("Thu");
	var objFri = document.getElementById("Fri");
	var objSat = document.getElementById("Sat");
	var objSun = document.getElementById("Sun");
	
	objMon.style.background = "url(./tv/newsflv/images/topic2.gif)";
	objTue.style.background = "url(./tv/newsflv/images/topic2.gif)";
	objWen.style.background = "url(./tv/newsflv/images/topic2.gif)";
	objThu.style.background = "url(./tv/newsflv/images/topic2.gif)";
	objFri.style.background = "url(./tv/newsflv/images/topic2.gif)";
	objSat.style.background = "url(./tv/newsflv/images/topic2.gif)";
	objSun.style.background = "url(./tv/newsflv/images/topic2.gif)";
	objSkin.style.background = "url(./tv/newsflv/images/topic1.gif)";
}

//改变内容
function changeTab(tab)
{
	var objTab = document.getElementById(tab);
	
	var objTabMon = document.getElementById("listMon");
	var objTabTue = document.getElementById("listTue");
	var objTabWen = document.getElementById("listWen");
	var objTabThu = document.getElementById("listThu");
	var objTabFri = document.getElementById("listFri");
	var objTabSat = document.getElementById("listSat");
	var objTabSun = document.getElementById("listSun");
	
	
	objTabMon.style.display = "none";
	objTabTue.style.display = "none";
	objTabWen.style.display = "none";
	objTabThu.style.display = "none";
	objTabFri.style.display = "none";
	objTabSat.style.display = "none";
	objTabSun.style.display = "none";
	
	
	objTab.style.display = "block";
}

function setscroll()
{
	var objlist = document.getElementById("list1");
	objlist.scrollTop = 0;
}

function directMove(num)
{
	var objlist = document.getElementById("list"+num);
	var objspan = document.getElementById("dspan"+num);
	var step = 1;	
	var count = 1;
	
	if(objspan.innerHTML == ">>")
	{
		while(count < 100)
		{
			count++;
			objlist.scrollTop += step;
		}
		objspan.innerHTML = "&lt;&lt;";
	}
	else
	{
		while(count < 100)
		{
			count++;
			objlist.scrollTop -= step;
		}
		objspan.innerHTML = "&gt;&gt;";
	}
	
}