var photo_id = 1; 

function load_photo(url, nr) {
	document.getElementById('photo').src = url;
	photo_id = nr; 
}

function load_large_photo(url) {
	document.getElementById('photo').src = url;
}

function set_pid(nr){
	photo_id = nr;
}

function large_photo(sid) {
	imgwin = window.open ('big.html?sid='+sid+'&pid='+photo_id, 'imgwin', 'width=660,height=705');
	imgwin.focus ();
}

function deleteRow(rij) {
	td = rij.parentNode;
	row = td.parentNode;
	t = document.getElementById('onderdeeltable');
	table = t.tBodies[0];
	table.removeChild(row);

}
function addOnderdeel() {
	onderdeel = document.getElementById('onderdeel');
	aantal = document.getElementById('aantal');
	if(onderdeel.value && aantal.value) {
		ot = document.getElementById('onderdeeltable');
		otable = ot.tBodies[0];
		// geef het aantal rijen -1
		numrows = otable.rows.length;
		tr = document.createElement('tr');
		td = document.createElement('td');

		td.innerHTML = '<input type="hidden" name="onderdeel['+numrows+1+']" value="'+onderdeel.value+'"/>'+onderdeel.value;
		tr.appendChild(td);
		td = document.createElement('td');
		td.innerHTML = '<input type="hidden" name="aantal['+numrows+1+']" value="'+aantal.value+'"/>'+aantal.value;
		tr.appendChild(td);
		td = document.createElement('td');
		td.innerHTML = '<input type="button" class="deleterow" onClick="deleteRow(this)">';
		tr.appendChild(td);

		// get the first row
		if(numrows == 2) {
			otable.appendChild(tr);
		} else {
			trold = otable.rows[2];
			otable.insertBefore(tr, trold);
		}
		onderdeel.value='';
		aantal.value='';
	}
}