var delay = 5000;  //每張圖的delay時間,1000為1秒
var pic;
var picArray;
var index =0;
var path;
		
function start(picNames, picPath){
    pic = picNames;
    path = picPath;
	if(pic=="")
	      return;
    picArray = pic.split(',');
	document.all.IMG1.src = path + picArray[index] ;
	run();
}
function run(){   
    setTimeout("changePicture()",delay);     
}
function changePicture(){
	index = (index+1) % picArray.length ;	  
    document.all.IMG1.src = path + picArray[index] ;		       
    run();	   
}