/**
 
 *  Version 2.1
 
 *      -Contributors: "mindinquiring" : filter to exclude any stylesheet other than print.
 
 *  Tested ONLY in IE 8 and FF 3.6. No official support for other browsers, but will
 
 *      TRY to accomodate challenges in other browsers.
 
 */
 
(function($) {
 
    var counter = 0;
 
    var modes = { iframe : "iframe", popup : "popup" };
 
    var defaults = { mode     : modes.iframe,
 
                     popHt    : 500,
 
                     popWd    : 400,
 
                     popX     : 200,
 
                     popY     : 200,
 
                     popTitle : '',
 
                     popClose : false };
 
    var settings = {};//global settings
 
    $.fn.printArea = function( options )
 
        {
 
            $.extend( settings, defaults, options );
            counter++;
 
            var idPrefix = "printArea_";
 
            $( "[id^=" + idPrefix + "]" ).remove();
 
            var ele = getFormData( $(this) );
 
            settings.id = idPrefix + counter;
            var writeDoc;
 
            var printWindow;
 
            switch ( settings.mode )
            {
 
                case modes.iframe :
 
                    var f = new Iframe();
 
                    writeDoc = f.doc;
 
                    printWindow = f.contentWindow || f;
 
                    break;
 
                case modes.popup :
 
                    printWindow = new Popup();
 
                    writeDoc = printWindow.doc;
            }
 
            writeDoc.open();
 
            writeDoc.write( docType() + "<html>" + getHead() + getBody(ele) + "</html>" );
            writeDoc.close();
 
            printWindow.focus();
 
            printWindow.print();
 
            if ( settings.mode == modes.popup && settings.popClose )
                printWindow.close();
        }
 
    function docType()
    {
 
        if ( settings.mode == modes.iframe || !settings.strict ) return "";
 
        var standard = settings.strict == false ? " Trasitional" : "";
 
        var dtd = settings.strict == false ? "loose" : "strict";
 
        return '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01' + standard + '//EN" "http://www.w3.org/TR/html4/' + dtd +  '.dtd">';
    }
 
    function getHead()
    {
 
        var head = "<head><title>" + settings.popTitle + "</title>";
 
        $(document).find("link")
 
            .filter(function(){
 
                    return $(this).attr("rel").toLowerCase() == "stylesheet";
                })
 
            .filter(function(){ // this filter contributed by "mindinquiring"
 
                    var media = $(this).attr("media");
 
                    return (media.toLowerCase() == "" || media.toLowerCase() == "print")
                })
            .each(function(){
 
                    head += '<link type="text/css" rel="stylesheet" href="' + $(this).attr("href") + '" >';
                });
        head += "</head>";
        return head;
 
    }
 
    function getBody( printElement )
    {
 
        return '<body><div class="' + $(printElement).attr("class") + '">' + $(printElement).html() + '</div></body>';
    }
 
    function getFormData( ele )
    {
 
        $("input,select,textarea", ele).each(function(){
 
            // In cases where radio, checkboxes and select elements are selected and deselected, and the print
 
            // button is pressed between select/deselect, the print screen shows incorrectly selected elements.
 
            // To ensure that the correct inputs are selected, when eventually printed, we must inspect each dom element
            var type = $(this).attr("type");
            if ( type == "radio" || type == "checkbox" )
 
            {
 
                if ( $(this).is(":not(:checked)") ) this.removeAttribute("checked");
                else this.setAttribute( "checked", true );
            }
 
            else if ( type == "text" )
 
                this.setAttribute( "value", $(this).val() );
 
            else if ( type == "select-multiple" || type == "select-one" )
 
                $(this).find( "option" ).each( function() {
 
                    if ( $(this).is(":not(:selected)") ) this.removeAttribute("selected");
                    else this.setAttribute( "selected", true );
 
                });
 
            else if ( type == "textarea" )
            {
 
                var v = $(this).attr( "value" );
 
                if ($.browser.mozilla)
 
                {
 
                    if (this.firstChild) this.firstChild.textContent = v;
                    else this.textContent = v;
                }
 
                else this.innerHTML = v;
            }
        });
 
        return ele;
    }
 
    function Iframe()
    {
 
        var frameId = settings.id;
 
        var iframeStyle = 'border:0;position:absolute;width:0px;height:0px;left:0px;top:0px;';
        var iframe;
 
        try
        {
 
            iframe = document.createElement('iframe');
 
            document.body.appendChild(iframe);
 
            $(iframe).attr({ style: iframeStyle, id: frameId, src: "" });
            iframe.doc = null;
 
            iframe.doc = iframe.contentDocument ? iframe.contentDocument : ( iframe.contentWindow ? iframe.contentWindow.document : iframe.document);
        }
        catch( e ) { throw e + ". iframes may not be supported in this browser."; }
 
        if ( iframe.doc == null ) throw "Cannot find document.";
        return iframe;
    }
 
    function Popup()
    {
 
        var windowAttr = "location=yes,statusbar=no,directories=no,menubar=no,titlebar=no,toolbar=no,dependent=no";
        windowAttr += ",width=" + settings.popWd + ",height=" + settings.popHt;
 
        windowAttr += ",resizable=yes,screenX=" + settings.popX + ",screenY=" + settings.popY + ",personalbar=no,scrollbars=no";
        var newWin = window.open( "", "_blank",  windowAttr );
 
        newWin.doc = newWin.document;
 
        return newWin;
    }
 
})(jQuery);// JavaScript Document
