var slideShowSpeed = 4000;
var crossFadeDuration = 1;
var Pic = new Array();
var num = 7;

var t;
for (t = 1 ;t <= num; t++) {
	Pic[t-1]='images/first/' + t + '.jpg'
	}
var s_j = 0;;
var p = Pic.length;
var preLoad = new Array();
for (i = 0; i < p; i++) {
    preLoad[i] = new Image();
    preLoad[i].src = Pic[i];
}
function runSlideShow() {
    if (document.all) {
        document.images.SlideShow.style.filter="blendTrans(duration=0)";
        document.images.SlideShow.style.filter="blendTrans(duration=crossFadeDuration)";
        document.images.SlideShow.filters.blendTrans.Apply();
    }
    document.images.SlideShow.src = preLoad[s_j].src;
    if (document.all) {
        document.images.SlideShow.filters.blendTrans.Play();
    }
    s_j = s_j + 1;
    if (s_j > (p - 1)) s_j = 0;
    t = setTimeout('runSlideShow()', slideShowSpeed);
}