var cpAD=new Array();
var cpADlink=new Array();
var adNum=5;
var coll=0;

cpAD[0]="/images/ecms2.jpg";
cpADlink[0]="/netnews/7/2007/ecms117781080213153.shtml";

cpAD[1]="/_img/newch.jpg";
cpADlink[1]="/netnews/8/2007/chinahtml117706360312977.shtml"

cpAD[2]="/_img/banner03.jpg";
cpADlink[2]="/webdesign/4/2006/xhtml-11586352456619.shtml";

cpAD[3]="/_img/banner05.jpg";
cpADlink[3]="http://new.chinahtml.com/systems/3/2005/1120728957.shtml";

cpAD[4]="/_img/banner01.jpg";
cpADlink[4]="/systems/2/index.shtml";

var preloadedimages=new Array();
for (i=1;i<cpAD.length;i++){
	preloadedimages[i]=new Image();
	preloadedimages[i].src=cpAD[i];
}

function jump2url()
{
	jumpUrl=cpADlink[adNum];
	jumpTarget='_blank';
	if (jumpUrl != '')
	{
	if (jumpTarget != '')
		window.open(jumpUrl,jumpTarget);
	else location.href=jumpUrl;
	}
}

function changeimg(n)
{
	adNum=n;
	switch(adNum)
	{
		case 0:
		{
			document.images.img1.src="/_img/serial_01a.gif";
			document.images.img2.src="/_img/serial_02.gif";
			document.images.img3.src="/_img/serial_03.gif";
			document.images.img4.src="/_img/serial_04.gif";
			document.images.img5.src="/_img/serial_05.gif";
			break;
		}
		case 1:
		{
			document.images.img1.src="/_img/serial_01.gif";
			document.images.img2.src="/_img/serial_02a.gif";
			document.images.img3.src="/_img/serial_03.gif";
			document.images.img4.src="/_img/serial_04.gif";
			document.images.img5.src="/_img/serial_05.gif";
			break;
		}
		case 2:
		{
			document.images.img1.src="/_img/serial_01.gif";
			document.images.img2.src="/_img/serial_02.gif";
			document.images.img3.src="/_img/serial_03a.gif";
			document.images.img4.src="/_img/serial_04.gif";
			document.images.img5.src="/_img/serial_05.gif";
			break;
		}
		case 3:
		{
			document.images.img1.src="/_img/serial_01.gif";
			document.images.img2.src="/_img/serial_02.gif";
			document.images.img3.src="/_img/serial_03.gif";
			document.images.img4.src="/_img/serial_04a.gif";
			document.images.img5.src="/_img/serial_05.gif";
			break;
		}
		case 4:
		{
			document.images.img1.src="/_img/serial_01.gif";
			document.images.img2.src="/_img/serial_02.gif";
			document.images.img3.src="/_img/serial_03.gif";
			document.images.img4.src="/_img/serial_04.gif";
			document.images.img5.src="/_img/serial_05a.gif";
			break;
		}
	}
	window.clearInterval(theTimer);
	adNum=adNum-1;
	nextAd();
}

function nextAd(){
	coll++;
	if(coll>1)
	{
		switch(adNum+1)
		{
			case 5:
			{
				document.images.img1.src="/_img/serial_01a.gif";
				document.images.img2.src="/_img/serial_02.gif";
				document.images.img3.src="/_img/serial_03.gif";
				document.images.img4.src="/_img/serial_04.gif";
				document.images.img5.src="/_img/serial_05.gif";
				break;
			}
			case 1:
			{
				document.images.img1.src="/_img/serial_01.gif";
				document.images.img2.src="/_img/serial_02a.gif";
				document.images.img3.src="/_img/serial_03.gif";
				document.images.img4.src="/_img/serial_04.gif";
				document.images.img5.src="/_img/serial_05.gif";
				break;
			}
			case 2:
			{
				document.images.img1.src="/_img/serial_01.gif";
				document.images.img2.src="/_img/serial_02.gif";
				document.images.img3.src="/_img/serial_03a.gif";
				document.images.img4.src="/_img/serial_04.gif";
				document.images.img5.src="/_img/serial_05.gif";
				break;
			}
			case 3:
			{
				document.images.img1.src="/_img/serial_01.gif";
				document.images.img2.src="/_img/serial_02.gif";
				document.images.img3.src="/_img/serial_03.gif";
				document.images.img4.src="/_img/serial_04a.gif";
				document.images.img5.src="/_img/serial_05.gif";
				break;
			}
			case 4:
			{
				document.images.img1.src="/_img/serial_01.gif";
				document.images.img2.src="/_img/serial_02.gif";
				document.images.img3.src="/_img/serial_03.gif";
				document.images.img4.src="/_img/serial_04.gif";
				document.images.img5.src="/_img/serial_05a.gif";
				break;
			}
		}
	}
	if (adNum<cpAD.length-1) adNum++;
	else adNum=0;
	setTransition();
	document.images.cpADrush.src=cpAD[adNum];
	playTransition();
	theTimer=setTimeout("nextAd()",5000);
}

function setTransition(){
	if (document.all)
	{
		cpADrush.filters.revealTrans.Transition=23;
		cpADrush.filters.revealTrans.apply();
	}
}

function playTransition(){
	if (document.all)
		cpADrush.filters.revealTrans.play()
}