function whatIsYdb(arg) {
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        var what_is_ydb = arg.what_is_ydb;
        AC_FL_RunContent('codebase', 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0', 'width', '560', 'height', '400', 'title', 'What is your divebook', 'src', what_is_ydb, 'quality', 'high', 'pluginspage', 'http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash', 'movie', what_is_ydb);
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        var alternateContent = '<div style="height:475px; width:560px;">'
                + '<div style="float:left;width: 560px;height: 110px;background-image: url( images/flash_weiche/whatis_html_header.jpg );"><\/div>'
                + '<div style="float:left;width:12px;height:350px;background-image: url( images/flash_weiche/border_side.gif );"><\/div>'
                + '<div style="float:left;width:536px;height:326px;">'
                + '<div class="smalltext" style="width:240px; height:330px; text-transform: none; margin:10px;">'
                + 'Yourdivebook.com is the new meeting point for scuba divers all over the world:<br/>'
                + 'Save your unforgettable dive experiences in the rich media logbook, offering various input assistances to easily enter and maintain your data.'
                + 'Upload personal pictures of the dives, store all underwater life you have spotted. Lean back, enjoy the slideshow and wallow in your nicest diving memories...<br/>'
                + 'Share all these memories with your dive-buddies all over the world: find them in our community, link them to your dives, stay in contact and plan future dive trips with them.'
                + 'Yourdivebook.com also calls all divers to commonly create two online encyclopedia, especially for divers: The Underwater Life Library and the Dive spots Library.<br/><br/>'
                + 'The Underwater Life Library collects all lifeforms, which can be spotted during a dive, sequences them in a coherent order, offers a picture album, information about their distribution and more.'
                + 'The Dive spot Library records all dive spots worldwide, their exact coordinates, displayed with GPS coordinates, special features of the divepots, users comments and more.'
                + '<\/div>'
                + '<div class="smalltext" style="width:250px; height:330px; text-transform: none; margin:10px;">'
                + 'The site mainly follows the wikipedia-principle, trying to collect and connect valuable data of divers logbooks and the experience and knowledge of scuba divers. All collected facts of the logbooks are sophisticatedly interlinked and interwoven, and generate real valuable information not only for divers: for example: which animal was spotted most often on this dive spot, or: I want to spot a whale shark while diving, where have most other divers spotted one? etc.<br/><br/>'
                + 'All of this finally, should be used to learn more about the oceans, rivers and lakes and their inhabitants, to raise the awareness of the vulnerability of this ecosystem and the duty to preserve it.'
                + 'A lot of valuable information slumbers in the divers logbooks all over the world. Collecting and connecting these information, putting them in relation and making them accessable, is one of the major goals of yourdivebook.com.'
                + 'By maintaining their logbooks, all members automatically generate the most complete, informative and objective repository of scuba diving - worldwide.'
                + 'Be part of the new divers community, contribute your experiences and register at yourdivebook.com - completely for free.'
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