var i = 0;
imageObj = new Image();
images = new Array();
images[0]="/pictures/bg/1.jpg"
images[1]="/pictures/bg/1.jpg"
images[2]="/pictures/bg/2.jpg"
images[3]="/pictures/bg/2.jpg"
images[4]="/pictures/bg/3.jpg"
images[5]="/pictures/bg/3.jpg"
for(i=0; i<=5; i++) {
	imageObj.src=images[i];
}