function next_gallery_image()
{
	if(c==max){c=1;}else{c++;}
	d=c;if(d==max){d=1;}else{d++;}
	update_gallery_image();
}
function prev_gallery_image()
{
	c--;if(c==0){c=max;};d=(c-1);if(d==0){d=max;};
	update_gallery_image();
}
function update_gallery_image()
{
	document.getElementById('show_gallery_image').innerHTML = '<div style="background: url('+folder+img[(c-1)][0]+') no-repeat '+img[(c-1)][1]+'px '+img[(c-1)][2]+'px;"><img width="468" height="468" src="/image/tool/p.gif" alt="" /></div>';
	document.getElementById('counter').innerHTML = c;
	document.getElementById('preload').innerHTML = '<img width="10" height="10" src="'+folder+img[(d-1)][0]+'" alt="" />';
}