// JavaScript Document
// Written by DragonFly ??
// QQ:29059637 E-mail:zapman74@qq.com

function DF_bannerOnload(){
	bannerCurrent=1;
	bannerCount=4;
	for(var i=2;i<=bannerCount;i++) DF_preloadImg('/z/cobo/img/banner/'+i+'.jpg');
	setInterval(DF_bannerAuto,3000);
}

function DF_preloadImg(){
	if(document.images){
		if(!document.imageArray) document.imageArray=new Array();
		var i,j=document.imageArray.length,args=DF_preloadImg.arguments;
		for(i=0;i<args.length;i++){
			if(args[i].indexOf("#")!=0){
				document.imageArray[j]=new Image;
				document.imageArray[j++].src=args[i];
			}
		}
	}
}

function DF_bannerAuto(){
	bannerCurrent+=1;
	document.getElementById("banner").style.backgroundImage="url(/z/cobo/img/banner/"+bannerCurrent+".jpg)";
	if(bannerCurrent==bannerCount) bannerCurrent=0;
}