// JavaScript Document
var i = 4;
var imgs = new Array();
$(document).ready(function(){
	imgs[0] = $("#shouye1");
	imgs[1] = $("#shouye2");
	imgs[2] = $("#shouye3");
	imgs[3] = $("#shouye4");
	setInterval('showImage()',5000);
});

function showImage(){
	imgs[i%4].hide();
	imgs[(i+1)%4].fadeIn("slow");
	if(i<8){
		i++;	
	}else{
		i=5;
	}
}