function changeSeveral(id) {
	current_send_id = id;

	var sprice = document.getElementById('sprice');

	sprice.getElementsByTagName('span')[0].innerHTML = several_prices[id] + '.-';
}


function changeNumberItem(e, id, table) {
	var keynum;
	var keychar;
	var numcheck;

	if(window.event) {
  		keynum = e.keyCode;
  	}
	else if(e.which) {
  		keynum = e.which;
  	}

	keychar = String.fromCharCode(keynum);

	var argument = "changeNumberItemFunc('" + id + "', '" + table + "')";

	change = setTimeout(argument, 100);

	if ((keynum < 48 || keynum > 57) && keynum != 8) {
 		return false;
 	}
	else {
		return true;
	}
}

function changeNumberItemFunc(id, table, size) {
	var pprice = document.getElementById('pprice');
	var psend = document.getElementById('psend');
	var number = pprice.getElementsByTagName('input')[0].value;

	var iteration = null;

	var id_exist_price = false;
	for(i=0;i<items_array.length;i++) {
		if(items_array[i] == id && tables_array[i] == table) {
			id_exist_price = true;
		}
	}

	for(i=0;i<piece_number.length;i++) {
		if(number >= piece_number[i]) {
			iteration = i;
		}
	}

	if(iteration == null && !id_exist_price) {
		number = piece_number[0];
		iteration = 0;
	}

	var new_price = number*piece_price[iteration];
    psend.getElementsByTagName('span')[0].innerHTML = new_price + '.-';

	pprice.getElementsByTagName('span')[0].innerHTML = piece_price[iteration] + '.-';
}

function sendSeveral() {
	addItem(sitem, stable, suser, 1, several_sizes[current_send_id]);
}

function sendPiece() {
	var number = pprice.getElementsByTagName('input')[0].value;
	addItem(sitem, stable, suser, number, '');
}