woocommerce/assets/js/frontend/woocommerce.js

jQuery(document).ready(function($) {

	// Orderby
	$('select.orderby').change(function(){
		$(this).closest('form').submit();
	});
	
	// Quantity buttons
	$("div.quantity:not(.buttons_added), td.quantity:not(.buttons_added)").addClass('buttons_added').append('<input type="button" value="+" class="plus" />').prepend('<input type="button" value="-" class="minus" />');
	
	// Target quantity inputs on product pages
	$("input.qty:not(.product-quantity input.qty)").each(function(){
		
		var min = parseFloat( $(this).attr('min') );
		
		if ( min && min > 0 && parseFloat( $(this).val() ) < min ) {
			$(this).val( min );
		}
		
	});
	
	$(".plus, .minus").live('click', function() {
		
		// Get values
		var $qty 		= $(this).closest('.quantity').find(".qty");
	    var currentVal 	= parseFloat( $qty.val() );
	    var max 		= parseFloat( $qty.attr('max') );
	    var min 		= parseFloat( $qty.attr('min') );
	    var step 		= $qty.attr('step');
	    
	    // Format values
	    if ( ! currentVal || currentVal == "" || currentVal == "NaN" ) currentVal = 0;
	    if ( max == "" || max == "NaN" ) max = '';
	    if ( min == "" || min == "NaN" ) min = 0;
	    if ( step == 'any' || step == "" || step == undefined || parseFloat( step ) == "NaN" ) step = 1;
	    
	    // Change the value
	    if ( $(this).is('.plus') ) {
		    
		    if ( max && ( max == currentVal || currentVal > max ) ) {
		    	$qty.val( max ); 
		    } else {
		    	$qty.val( currentVal + parseFloat( step ) ); 
		    }
			    
	    } else {
		    
		    if ( min && ( min==currentVal || currentVal < min ) ) {
		    	$qty.val( min ); 
		    } else if ( currentVal > 0 ) {
		    	$qty.val( currentVal - parseFloat( step ) );
		    }
		    
	    }
	    
	    // Trigger change event
	    $qty.trigger('change');
	});

	/* State/Country select boxes */
	var states_json = woocommerce_params.countries.replace(/&quot;/g, '"');
	var states = $.parseJSON( states_json );			
	
	$('select.country_to_state').change(function(){
		
		var country = $(this).val();
		
		var $statebox = $(this).closest('div').find('#billing_state, #shipping_state, #calc_shipping_state');
		var $parent = $statebox.parent();

		var input_name = $statebox.attr('name');
		var input_id = $statebox.attr('id');
		var value = $statebox.val();
		
		if (states[country]) {
			if (states[country].length == 0) {
				
				// Empty array means state field is not used
				$parent.fadeOut(200, function() {
					$statebox.parent().find('.chzn-container').remove();
					$statebox.replaceWith('<input type="hidden" class="hidden" name="' + input_name + '" id="' + input_id + '" value="" />');
					
					$('body').trigger('country_to_state_changed', [country, $(this).closest('div')]);
				});
				
			} else {
				
				$parent.fadeOut(200, function() {
					var options = '';
					var state = states[country];
					for(var index in state) {
						options = options + '<option value="' + index + '">' + state[index] + '</option>';
					}
					if ($statebox.is('input')) {
						// Change for select
						$statebox.replaceWith('<select name="' + input_name + '" id="' + input_id + '" class="state_select"></select>');
						$statebox = $(this).closest('div').find('#billing_state, #shipping_state, #calc_shipping_state');
					}
					$statebox.html( '<option value="">' + woocommerce_params.select_state_text + '</option>' + options);
					
					$statebox.val(value);
					
					$('body').trigger('country_to_state_changed', [country, $(this).closest('div')]);
					
					$parent.fadeIn(500);
				});
			
			}
		} else {
			if ($statebox.is('select')) {
				
				$parent.fadeOut(200, function() {
					$parent.find('.chzn-container').remove();
					$statebox.replaceWith('<input type="text" class="input-text" name="' + input_name + '" id="' + input_id + '" />');
					
					$('body').trigger('country_to_state_changed', [country, $(this).closest('div')]);
					$parent.fadeIn(500);
				});
				
			} else if ($statebox.is('.hidden')) {
				
				$parent.find('.chzn-container').remove();
				$statebox.replaceWith('<input type="text" class="input-text" name="' + input_name + '" id="' + input_id + '" />');
				
				$('body').trigger('country_to_state_changed', [country, $(this).closest('div')]);
				$parent.delay(200).fadeIn(500);
				
			}
		}
		
		$('body').delay(200).trigger('country_to_state_changing', [country, $(this).closest('div')]);
		
	});

});