var curimage_a=0
for (y=0; y<dimension_a.split("x")[1]; y++){
for (x=0; x<dimension_a.split("x")[0]; x++){
if (curimage_a<galleryarray_a.length)
document.write('<div id="slide'+curimage_a+'_a" class="slideshow_a">'+buildimage_a(curimage_a)+'</div>')
curimage_a++
}
}