//imgviev unix
function swap(id){
	bigpic = document.getElementById('bigPic');
	lowpic = document.getElementById('p'+id);
	fn="pix/"+$(lowpic).attr("name");
	pix_id = id;
    bigpic.src=fn;
    return false;
}

function	next(){
        next_id = pix_id*1+1*1;

        if (next_id==tot_pix*1+1*1){
        	pix_id=1;
        	swap(1);
          	return false;
        }

        pix_id++;
        swap(next_id);

		return false;
	}

function	prev(){
		prev_id=pix_id*1-1*1;

		if (prev_id==0){
			pix_id=tot_pix;
        	swap(tot_pix);
        	return false;
        }

		pix_id--;
        swap(prev_id);

		return false;
	}