var sh;
marqueesWidth=690;
preLeft=0; currentLeft=0; stopscroll=false; getlimit=0;preTop=0; currentTop=0;

function scrollLeft(n)
{
	marquees = document.getElementById("marquees"+n);
	if(stopscroll==true) return;
	preLeft=marquees.scrollLeft;
	marquees.scrollLeft+=2;
	if(preLeft==marquees.scrollLeft)
	{
		marquees.scrollLeft=templayer.offsetWidth-marqueesWidth+1;
	}
}

function scrollRight(n)
{
	marquees = document.getElementById("marquees"+n);
	if(stopscroll==true) return;

	preLeft=marquees.scrollLeft;
	marquees.scrollLeft-=2;
	if(preLeft==marquees.scrollLeft)
	{
		if(!getlimit)
		{
			marquees.scrollLeft=templayer.offsetWidth*2;
			getlimit=marquees.scrollLeft;
		}
		marquees.scrollLeft-=1;
	}
}

function Left(n)
{
	stopscroll = false;
	sh = setInterval("scrollLeft("+n+")",20);
}

function Right(n)
{
	stopscroll = false;
	sh = setInterval("scrollRight("+n+")",20);
}

function StopScroll()
{
	stopscroll = true;
	clearInterval( sh );
}

function init(n)
{
	marquees = document.getElementById("marquees"+n);
	with(marquees)
	{
		//style.height=0;
		style.width=marqueesWidth;
		style.overflowX="hidden";
		style.overflowY="visible";
		style.align = "center";
		noWrap=true;
	}
}

//导航头部按钮变化
function change_top_over(n)
{
	for(var i=1; i<7;i++)
	{
		if(i==n)
		{
			document.getElementById("margee_top_nav_"+i).style.background = "url(../images/ll_03.gif) center no-repeat";
			document.getElementById("margee_top_nav_"+i).style.color = "#fff";
			document.getElementById("table"+i).style.display = "block";
		}
		else
		{
			document.getElementById("margee_top_nav_"+i).style.background = "url(../images/ll_05.gif) center no-repeat";
			document.getElementById("margee_top_nav_"+i).style.color = "#000";
			document.getElementById("table"+i).style.display = "none";			
		}				
	}
}

//initi
change_top_over(1);