if (document.images) {
bt1 = new Image
bt2 = new Image
bt3 = new Image
bt4 = new Image
bt5 = new Image
bt1.src = '1.jpg'
bt2.src = '2.jpg'
bt3.src = '3.jpg'
bt4.src = '4.jpg'
bt5.src = '5.jpg'
}
var CurrentMsg = '1.jpg';
function update(msg) {
var pad_str="";                                                 
                         
CurrentMsg = pad_str + msg;                           
document.pic.src = CurrentMsg;
clearTimeout(timer);                           
timer = setTimeout("idleMsg()",4000);        
}
function MakeArray(n) {                           
this.length=n;                           
for(var i = 1; i<= n; i++) {                                   
this[i] = "";                
}                           
return(this);        
}               
var index = 1;           
var notice_num = 5;                   
var notices = new MakeArray(notice_num);        
notices[1] = "1.jpg";
notices[2] = "2.jpg";
notices[3] = "3.jpg"; 
notices[4] = "4.jpg";
notices[5] = "5.jpg"; 
var timer = setTimeout('idleMsg()',1500);                   
function nochange() {
document.restaur.src = CurrentMsg;        
}                   
function idleMsg() {                           
update(notices[index++]);                           
if(index>notice_num) { 
index=1; 
   }  
}