function count(galleryarray){return galleryarray.length;}

var curimg=0
var curimg2=1

function rotateimages(){
document.getElementById("slideshow").setAttribute("src", "_img/adverts/"+galleryarray[curimg])
curimg=(curimg<galleryarray.length-1)? curimg+1 : 0

document.getElementById("slideshow2").setAttribute("src", "_img/adverts/"+galleryarray[curimg2])
curimg2=(curimg2<galleryarray.length-1)? curimg2+1 : 0
}

window.onload=function(){
setInterval("rotateimages()", 3500)
setInterval("rotateimages2()", 2500)
}