/*
图片交替轮换，各个图片链接地址不同	createby:chl
*/

var imgUrl=new Array();
var imgLink=new Array();
var adNum=0;
imgUrl[1]="images/banner_1.jpg";
imgLink[1]="#";
imgUrl[2]="images/banner_2.jpg";
imgLink[2]="#";
imgUrl[3]="images/banner_3.jpg";
imgLink[3]="#";


var imgPre=new Array();
var j=0;
for (i=1;i<=3;i++) {
    if( (imgUrl[i]!="") && (imgLink[i]!="") ) {
        j++;
    } else {
        break;
    }
}

function playTran(){
    if (document.all){
        document.imgInit.filters[0].play();
    }
}

function nextAd(){
    if(adNum<j)adNum++ ;
    else adNum=1;
    
    if (document.all){
        document.imgInit.filters[0].Transition=12;
        document.imgInit.filters[0].apply();
    }
    document.images.imgInit.src=imgUrl[adNum];
    playTran();
    theTimer=setTimeout("nextAd()", 6000);
}


function goUrl(){
    jumpUrl=imgLink[adNum];
    if (jumpUrl != '#')
    {
		jumpTarget='_blank';
    }
	else
	{
		jumpTarget='_self';
	}

    if (jumpUrl != ''){
        if (jumpTarget != '') 
            window.open(jumpUrl,jumpTarget);
        else
            location.href=jumpUrl;
    }
}