/* 
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
$(document).ready(function(){
	$('.mnozstvi[name^="speedy"]').focus(function(el){
		if ($(this).val() == '0')
			$(this).val('');
	}).blur(function(){
		if ($(this).val() == '0' || $(this).val() == '')
			$(this).val('0');
	}).keydown(function(event){
		if (event.which == 40) //sipka dolu
			$(this).trigger('blur').closest('tr').next().find('.mnozstvi').focus();
		if (event.which == 38) //sipka nahoru
			$(this).trigger('blur').closest('tr').prev().find('.mnozstvi').focus();
	});

	/* osetreni, aby pri nevyplneni mnozstvi polozek v predobjednavce nesel formular odeslat */
	$('form.speedy_shopping').submit(function() {
		var canSubmit = false;
		$('input[name^=speedy_amount]').each(function() {
			if ($(this).val() > 0)
			{
				canSubmit = true;
			}
		});

		return canSubmit;
	});

	$("#upoutavky").changebox({'play_pause' : true, 'time' : 5000});
});