var timeDelay = 3; // Время задержки в секундах
var Pix = new Array
("images/a1.jpg"
,"images/a2.jpg"
,"images/a3.jpg"
,"images/a4.jpg"
);
var Pix2 = new Array
("images/b1.jpg"
,"images/b2.jpg"
,"images/b3.jpg"
);
var Pix3 = new Array
("images/c1.jpg"
,"images/c2.jpg"
,"images/c3.jpg"
,"images/c4.jpg"
,"images/c5.jpg"
,"images/c6.jpg"
);


var howMany = Pix.length;
var howMany2 = Pix2.length;
var howMany3 = Pix3.length;

var PicCurrentNum = 0;
var PicCurrentNum2 = 0;
var PicCurrentNum3 = 0;
var PicCurrent = new Image();
PicCurrent.src = Pix[PicCurrentNum];

var PicCurrent2 = new Image();
PicCurrent2.src = Pix2[PicCurrentNum2];

var PicCurrent3 = new Image();
PicCurrent3.src = Pix3[PicCurrentNum3];
timeDelay *= 800;
function startPix() {
setInterval("slideshow()", timeDelay);
setInterval("slideshow2()", timeDelay);
setInterval("slideshow3()", timeDelay);
}
function slideshow() {
PicCurrentNum++;
if (PicCurrentNum == howMany) {
PicCurrentNum = 0;
}
PicCurrent.src = Pix[PicCurrentNum];
document["ChangingPix"].src = PicCurrent.src;
}

function slideshow2() {
PicCurrentNum2++;
if (PicCurrentNum2 == howMany2) {
PicCurrentNum2 = 0;
}
PicCurrent2.src = Pix2[PicCurrentNum2];
document["ChangingPix2"].src = PicCurrent2.src;
}

function slideshow3() {
PicCurrentNum3++;
if (PicCurrentNum3 == howMany3) {
PicCurrentNum3 = 0;
}
PicCurrent3.src = Pix3[PicCurrentNum3];
document["ChangingPix3"].src = PicCurrent3.src;
}