/*
	jquery.include-2
	@version  2.0
 	@author   John Hunter on 2008-09-20.
	Licence CC-BSD <http://creativecommons.org/licenses/BSD/>
	
	Uses a standard tag with an src value <span src=""></span> - these are stripped from the dom after loading.
	Can handle nested includes - linking paths in the include file are modifed to match the host page context.
	For post-include scripts $(document).includeReady works the same as $(document).ready
	
	Based on ideas from hinclude by Mark Nottingham <mnot@pobox.com>
*/



(function($) {
    var maxRegression = 20;
    var tagName = 'span';
    var keepIncludeTags = false;


    var parse = function(domNode) {
        if (maxRegression-- < 1) return this;

        // remove include tags and fire ready event
        if ($(tagName + '[src]').length === 0) {
            if (!keepIncludeTags) $(tagName + '.include-loaded').unwrap();
            else $(tagName + '.include-loaded').show();

            $(document).trigger('includeReady');
            return this;
        }

        // load and parse include
        $(tagName + '[src]', domNode).each(function() {
            var inc = $(this);
            var src = inc.attr('src');
            if (src) {
                var path = src.split('/').slice(0, -1).join('/') + '/';
                $.get(src, function(data) {

                    // modify any relative paths 
                    data = data.replace(/(\b(?:src|href)=")([^"]+")/g, function() {
                        var s = arguments;
                        if (/^http(s{0,1}):\/{2}|^\//.test(s[2])) {
                            return s[1] + s[2];
                        }
                        return s[1] + path + s[2];
                    });

                    inc.html(data).addClass('include-loaded').removeAttr('src').hide();

                    setTimeout(function() { parse(inc.get(0)); }, 30); // delay for IE
                });
            }
        });
        return this;
    };


    // create the custom event
    $.fn.includeReady = function(observerFn) {
        $(document).bind('includeReady', function(event) {
            observerFn(event);
        });
        return this;
    };

    $.fn.unwrap = function() {
        $(this).each(function() {
            var el = $(this);
            el.replaceWith(el.contents());
        });
    };

    $(document).ready(function() {
        parse(document);
    });

})(jQuery);