function showhide(id){ 
	if (document.getElementById){ 
		obj = document.getElementById(id); 
		if (obj.style.display == "none"){ 
			obj.style.display = ""; 
		} else { 
			obj.style.display = "none"; 
		} 
	} 
} 
function sumTotals(section, val){
	if (section == "lr")
		document.getElementById('lr_total['+val+']').value = document.getElementById('lr_price['+val+']').value * document.getElementById('lr_qty['+val+']').value;
	else if (section == "dr")
		document.getElementById('dr_total['+val+']').value = document.getElementById('dr_price['+val+']').value * document.getElementById('dr_qty['+val+']').value;
	else if (section == "br")
		document.getElementById('br_total['+val+']').value = document.getElementById('br_price['+val+']').value * document.getElementById('br_qty['+val+']').value;
	else if (section == "nur")
		document.getElementById('nur_total['+val+']').value = document.getElementById('nur_price['+val+']').value * document.getElementById('nur_qty['+val+']').value;
	else if (section == "app")
		document.getElementById('app_total['+val+']').value = document.getElementById('app_price['+val+']').value * document.getElementById('app_qty['+val+']').value;
	else if (section == "od")
		document.getElementById('od_total['+val+']').value = document.getElementById('od_price['+val+']').value * document.getElementById('od_qty['+val+']').value;
	else if (section == "msc")
		document.getElementById('msc_total['+val+']').value = document.getElementById('msc_price['+val+']').value * document.getElementById('msc_qty['+val+']').value;
	else if (section == "box")
		document.getElementById('box_total['+val+']').value = document.getElementById('box_price['+val+']').value * document.getElementById('box_qty['+val+']').value;
}