var path_to_thumbd='4/'; 
var num_of_thumbd=6;
var code_numd=num_of_thumbd-1;
thumbsd = new Array(code_numd);
<!-- Script writed by Doctor, 2003, for questions knock ICQ 171114296 :o)) -->
function gend(n){return (Math.round(Math.random()*n)+1);}
function check_numd(num){
for (j=0;j<=code_numd;j++){if (thumbsd[j]==num) return false};
return true;}

ex=gend(code_numd);
for (k=0;k<=code_numd;k++){
if (check_numd(ex)) {thumbsd[k]=ex;}
	else {
		while (check_numd(ex)==false) {ex=gend(num_of_thumbd-1)};
		thumbsd[k]=ex;
		}
}
var td=0;
function thumb_viewd(){
document.writeln('<IMG SRC="'+path_to_thumbd+thumbsd[td]+'.jpg">');
t++;
}