(function($) {
    //Enables to select rows in a table.
    //Write chosen attribute of selected rows to any other element. hidden or textbox to handle postbacks.

    //Creating namespace for rowselect
    jQuery.rowSelect = {};

    //Namespace for settings
    jQuery.rowSelect.settings =
    {
        tableClassName: 'rowSelect',
        rowSelectedClassName: 'selected'
    }

    //Default values for a rowSelect table
    jQuery.rowSelect.defaults = function() {
        this.attachTo = '';
        this.attrName = '';
        this.allowMulti = false;

    }

    //an array to hold settings for individual tables
    jQuery.rowSelect.allSettings = new Array();

    //Namespace for functions
    jQuery.rowSelect.api = {};
    jQuery.rowSelect.api.getSelected = function(selector) {
        var t = $(selector)[0];
        if (!t) return;
        return $("tr.selected", t)
    }



    //The main plugin..
    jQuery.fn.rowSelect = function(settings) {

        //Creating settings object for this call
        var s = new $.rowSelect.defaults();
        $.extend(s, settings);


        this.each(function(i) {
            //Only tables is allowed to be selected..
            if (this.tagName.toUpperCase() != 'TABLE') return;

            //Adding the classname to the tbody of the table.
            //Maybe change this to table?
            $("tbody", this).addClass($.rowSelect.settings.tableClassName);

            //Storing the values for this table in then allSettings array
            $.rowSelect.allSettings[this.id] = s;

            //Reading values from then attached input. In case of someone sending a string of ',' seperated values to indicate wiche rows to initially show as selected.
            //Looing trough all tr of the table, to check if it should be selected
            var vals = $(s.attachTo).val().split(',');
            $("tbody tr", this).each(function() {
                for (var x = 0; x < vals.length; x++) {
                    if ($(this).attr(s.attrName) == vals[x]) {
                        $(this).addClass($.rowSelect.settings.rowSelectedClassName)
                    }
                }
            })
            //End of init check.


            //Attaching the click event to the tbody of the table. 
            $("tbody", this).bind("click",
                function(e) {
                    var tr, $tr;
                    var table;

                    //Getting the tr and not anything else the user might have clicked...
                    if (e.target.tagName != 'tr') {
                        tr = $(e.target).parents('tr:first');
                    } else {
                        tr = e.target;
                    }
                    ///////////////////////////////

                    $tr = $(tr);

                    //Same thing with the table....
                    table = $tr.parents('table:first');

                    //if the table is not found.. Something is wrong 'aborting'
                    if (table.length == 0) return;

                    //Getting the settings object for this table.
                    //There is a possible 'hickup' here if the table does't have an id. 
                    var tSettings = $.rowSelect.allSettings[table[0].id];

                    //Check if it is multi or single select and handle accordingly...

                    if (tSettings.allowMulti) {
                        //toggle the class for this line
                        $tr.toggleClass($.rowSelect.settings.rowSelectedClassName);

                        var vals = new Array;
                        var selected = jQuery.rowSelect.api.getSelected(this);

                        for (var x = 0; x < selected.length; x++) {
                            vals[x] = $(selected[x]).attr(tSettings.attrName);
                        }
                        $(tSettings.attachTo).val(vals.join(','));
                    }
                    
                    else {
                        $("tr", table).removeClass($.rowSelect.settings.rowSelectedClassName);
                        $tr.addClass($.rowSelect.settings.rowSelectedClassName);
                        
                        //If current line is selected set the value to the attached input
                        if ($tr.hasClass($.rowSelect.settings.rowSelectedClassName)) {
                            var thisVal = $tr.attr(tSettings.attrName);
                            $(tSettings.attachTo).val(thisVal);
                        }
                    }
                })
        }
        )
        return this;
    }
})(jQuery);