var key='false';
var imgs = [
'/images/slaid/sl_01.jpg',
'/images/slaid/sl_02.jpg', 
'/images/slaid/sl_03.jpg',
'/images/slaid/sl_04.jpg',
'/images/slaid/sl_05.jpg', 
'/images/slaid/sl_06.jpg',
'/images/slaid/sl_07.jpg',
'/images/slaid/sl_08.jpg' 

] ;
var _max = imgs.length ;

for (var i = 0 ; i < _max ; i++) {
	var obj = new Image () ;
		obj.src = imgs [i] ;
}
key="true";

function chgImg (_num) {
	eval ("document.images." + 'slaid' + ".src = '" + imgs [_num] + "'") ;
}

function Slaid(n) {
	if (key=='true') {
		chgImg (n) ;
		n++ ;
	if (n > _max - 1) n = 0;
	}
	setTimeout("Slaid(" + n + ")",3000);
}