// image preloading
        a=new Image();a.src="images/header1logo.jpg";
        b=new Image();b.src="images/header2logo.jpg";
        c=new Image();c.src="images/header3logo.jpg";

function startSlideShow(){setTimeout("pic1()",4000)}

function pic1(){document.images.slidepix.src="images/header2logo.jpg";
setTimeout("pic2()",4000)}

function pic2(){document.images.slidepix.src="images/header3logo.jpg";
setTimeout("pic3()",4000);}

function pic3(){document.images.slidepix.src="images/header1logo.jpg";
setTimeout("pic1()",4000);}