jQuery.fn.extend({
	selectbox: function(options) {
		return this.each(function() {
			new jQuery.SelectBox(this, options);
		});
	}
});

// pawel maziarz: work around for ie logging
if (!window.console) {
	var console = {
		log: function(msg) { 
		}
	}
}

jQuery.SelectBox = function(selectobj, options) {
	var opt = options || {};
	opt.inputClass = opt.inputClass || "selectbox";
	opt.containerClass = opt.containerClass || "selectboxwrap";
	opt.hoverClass = opt.hoverClass || "current";
	opt.currentClass = opt.selectedClass || "selected"
	opt.debug = opt.debug || false;
	var elm_id = selectobj.id;
	var active = -1;
	var inFocus = false;
	var hasfocus = 0;
	//jquery object for select element
	var $select = $(selectobj);
	// jquery container object
	var $container = setupContainer(opt);
	//jquery input object 
	var $input = setupInput(opt);
	// hide select and append newly created elements
	$select.hide().before($input).before($container);
	init();
	$input
		.click(function(){
		if (!inFocus) {
			  $container.toggle();
			}
		})
		.focus(function(){
		   if ($container.not(":visible")) {
			   inFocus = true;
			   $container.show();
		   }
		})
		.keydown(function(event) {	   
			switch(event.keyCode) {
				case 38: // up
					event.preventDefault();
					moveSelect(-1);
					break;
				case 40: // down
					event.preventDefault();
					moveSelect(1);
					break;
				//case 9: // tab
				case 13: // return
					event.preventDefault(); // seems not working in mac
					$("li." + opt.hoverClass).trigger("click");
					break;
				case 27: //escape
				  hideMe();
				  break;
			}
		})
		.blur(function() {
			if ($container.is(":visible") && hasfocus > 0 ) {
				if(opt.debug) console.log("container visible and has focus")
			} else {
				hideMe();	
			}
		});
	function hideMe() { 
		hasfocus = 0;
		$container.hide(); 
	}
	function init() {
		$container.append(getSelectOptions($input.attr("id"))).hide();
		var width = $input.css("width");
		$container.width(width);
    }
	function setupContainer(options) {
		var container = document.createElement("div");
		$container = $(container);
		$container.attr("id", elm_id + "_container");
		$container.addClass(options.containerClass);
		return $container;
	}
	function setupInput(options) {
		var input = document.createElement("input");
		var $input = $(input);
		$input.attr("id", elm_id + "_input");
		$input.attr("type", "text");
		$input.addClass(options.inputClass);
		$input.attr("autocomplete", "off");
		$input.attr("readonly", "readonly");
		$input.attr("tabIndex", $select.attr("tabindex")); // "I" capital is important for ie
		return $input;	
	}
	function moveSelect(step) {
		var lis = $("li", $container);
		if (!lis) return;
		active += step;
		if (active < 0) {
			active = 0;
		} else if (active >= lis.size()) {
			active = lis.size() - 1;
		}
		lis.removeClass(opt.hoverClass);
		$(lis[active]).addClass(opt.hoverClass);
	}
	function setCurrent() {	
		var li = $("li." + opt.currentClass, $container).get(0);
		var ar = ("" + li.id).split("_");
		var el = ar[ar.length-1];
		$select.val(el);
		$input.val($(li).html());
		return true;
	}
	// select value
	function getCurrentSelected() {
		return $select.val();
	}
	// input value
	function getCurrentValue() {
		return $input.val();
	}
	function getSelectOptions(parentid) {
		var select_options = new Array();
		var ul = document.createElement("ul");
		$select.children("option").each(function() {
			var li = document.createElement("li");
			li.setAttribute("id", parentid + "_" + $(this).val());
			li.innerHTML = $(this).html();
			if ($(this).is(":selected")) {
				$input.val($(this).html());
				$(li).addClass(opt.currentClass);
			}
			ul.appendChild(li);
			$(li)
				.mouseover(function(event) {
					hasfocus = 1;
					if (opt.debug) console.log("over on : " + this.id);
					jQuery(event.target, $container).addClass(opt.hoverClass);
				})
				.mouseout(function(event) {
					hasfocus = -1;
					if (opt.debug) console.log("out on : " + this.id);
					jQuery(event.target, $container).removeClass(opt.hoverClass);
				})
				.click(function(event) {
				  var fl = $("li." + opt.hoverClass, $container).get(0);
					if (opt.debug) console.log("click on : " + this.id);
					$("li." + opt.currentClass).removeClass(opt.currentClass); 
					$(this).addClass(opt.currentClass);
					setCurrent();
					hideMe();
				});
		});
		return ul;
	}
};