(function( $ ) {
	
	$.widget( "ui.combobox", {
		_create: function() {
			var self = this,
				select = this.element.hide(),
				//selected = select.children( ":selected" ),
				value = this.options.defaultText || "",
				defaultTextClass = this.options.defaultTextClass || "default-text";
			//select.val("");
			var input = this.input = $( "<input>" )
				.insertAfter( select )
				.val( value )
				.focus( function()
					{
						if (input.val() == value)
						{
							input.val("");
							input.removeClass( defaultTextClass );
							//select.val( "" );
						}
					}
				)
				.blur( function()
					{
						if (input.val() == "")
						{
							input.val(value);
							input.addClass( defaultTextClass );
							//select.val( "" );
						}
					}
				)
				.autocomplete({
					delay: 250,
					minLength: 1,
					source: function( request, response ) {
						var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
						response( select.children( "option" ).map(function() {
							var text = $( this ).text();
							if ( this.value && ( !request.term || matcher.test(text) ) )
								return {
									label: text.replace(
										new RegExp(
											"(?![^&;]+;)(?!<[^<>]*)(" +
											$.ui.autocomplete.escapeRegex(request.term) +
											")(?![^<>]*>)(?![^&;]+;)", "gi"
										), "<strong>$1</strong>" ),
									value: text,
									option: this
								};
						}) );
					},
					select: function( event, ui ) 
					{
						/*ui.item.option.selected = true;
						self._trigger( "selected", event, 
						{
							item: ui.item.option
						});*/
						input.val(ui.item.option.value);
						$(this).parents('form:first').submit();
					},
					change: function( event, ui ) 
					{
						if ( !ui.item ) 
						{
							var matcher = new RegExp( "^" + $.ui.autocomplete.escapeRegex( $(this).val() ) + "$", "i" ),
								valid = false;
							select.children( "option" ).each(function() 
							{
								if ( $( this ).text().match( matcher ) ) 
								{
									this.selected = valid = true;
									return false;
								}
							});
							if ( !valid ) 
							{
								// remove invalid value, as it didn't match anything
								$( this ).val( value );
								$(this).addClass(defaultTextClass);
								//select.val( "" );
								input.data( "autocomplete" ).term = "";
								return false;
							}
						}
					}
				})
				.addClass( "ui-widget ui-widget-content ui-corner-left " + defaultTextClass );
			input.data( "autocomplete" )._renderItem = function( ul, item ) {
			v = item.value.replace(/[^a-zA-Z0-9]/g, '');
				return $( "<li></li>" )
					.data( "item.autocomplete", item )					 
					.append( "<a rel='"+ v + "'>" + item.label + "</a>" )
					.appendTo( ul );
			};
			setUpDropdowns(input);
		},
		destroy: function() {
			this.input.remove();
			this.element.show();
			$.Widget.prototype.destroy.call( this );
		}
	});
})( jQuery );