function wdebug(txt) {
document.getElementById("wdebug").value += txt;
}


/*
 * jQuery selectbox plugin
 *
 * Copyright (c) 2007 Sadri Sahraoui (brainfault.com)
 * Licensed under the GPL license and MIT:
 *   http://www.opensource.org/licenses/GPL-license.php
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * The code is inspired from Autocomplete plugin (http://www.dyve.net/jquery/?autocomplete)
 *
 * Revision: $Id$
 * Version: 0.6
 * 
 * Changelog :
 *  Version 0.61 pulldown will close when the pulldown will be clicked again.
 *  Version 0.6
 *  - Fix IE scrolling problem
 *  Version 0.5 
 *  - separate css style for current selected element and hover element which solve the highlight issue 
 *  Version 0.4
 *  - Fix width when the select is in a hidden div   @Pawel Maziarz
 *  - Add a unique id for generated li to avoid conflict with other selects and empty values @Pawel Maziarz
 */
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 || "selectbox-wrapper";
    opt.hoverClass = opt.hoverClass || "current";
    opt.currentClass = opt.selectedClass || "selected"
    opt.debug = opt.debug || false;

    var elm_id = selectobj.id;
    var active = 0;
    var inFocus = false;
    var hasfocus = 0;
	var dontopen = false;
    //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);
	var state = false;

    init();

    $input
	.click(function() {
		if (!inFocus) {
	        $container.toggle();
		}
		if (!state) {
			$input.addClass("active");
			state = true;
			//inFocus = true;
		} else {
			inFocus = false;
			state = false;
			hideMe();
		}

	})
	.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 {
		
	        // Workaround for ie scroll - thanks to Bernd Matzner
	        if ($.browser.msie || $.browser.safari) { // check for safari too - workaround for webkit
	            if (document.activeElement.getAttribute('id').indexOf('_container') == -1) {
					state = false;	               
				   hideMe();
	            } else {
	                $input.focus();
	            }
	        } else {
				inFocus = false;
				state = false;
	            hideMe();
	        }
	    }
	});


    function hideMe() {
		hasfocus = 0;
        $container.hide();
		$input.removeClass("active");
    }

    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 || lis.length == 0) return false;
        active += step;
        //loop through list
        if (active < 0) {
            active = lis.size();
        } else if (active > lis.size()) {
            active = 0;
        }
        scroll(lis, active);
        lis.removeClass(opt.hoverClass);

        $(lis[active]).addClass(opt.hoverClass);
    }

    function scroll(list, active) {
        var el = $(list[active]).get(0);
        var list = $container.get(0);

        if (el.offsetTop + el.offsetHeight > list.scrollTop + list.clientHeight) {
            list.scrollTop = el.offsetTop + el.offsetHeight - list.clientHeight;
        } else if (el.offsetTop < list.scrollTop) {
            list.scrollTop = el.offsetTop;
        }
    }

    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());
        //wxh do postback-----------------
        var id = $select.attr('id');
        if (id.indexOf('drpDistance') < 0 && id.indexOf('drpModels')<0) {
            setTimeout("__doPostBack('"+$select.attr('id')+"', '"+$select.val()+"')",0);
        }
        //------------------------------
        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);
			    $(this).addClass(opt.currentClass);
			    setCurrent();
			    //$select.change();
			    $select.get(0).blur();
			    hideMe();
				
			});
        });
        return ul;
    }



};