function MouseOverRow( elm ){
	elm.className='selected';
	elm.style.cursor='pointer';
}
		
function MouseOutRow( elm ){
	elm.className='';
}

groupsopen = true;
function openclosegroups(){
	groupsopen = !groupsopen;
	tables = document.getElementsByTagName('table');
	for ( i=0; tables.length > i; i++){
		if (tables[i].id.substr(0,7) == 'artlist'){
			tables[i].style.display = groupsopen ? 'block' : 'none';
		}
	}
}

function setAantalBijproduct( elm, factor ){
	catchIt = false;
	for(i=0;i<elm.form.length;i++){
		if (catchIt){
			elm.form[i].value = elm.value * factor; 
			catchIt = false;
		}
		
		if (elm.name == elm.form[i].name){
			catchIt = true;
		}
	}
}