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                                txt = document.getSelection();
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                                txt = document.selection.createRange().text;
                        } else {
                                return;
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                '<input name="u" id="u" type="hidden" value="" />'+
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                '<div>'+
                '<a href="http://wists.com/"><img src="http://wists.com/mainimages/logo_top_left.gif" border=0></a><br />'+
                '<p>Click on the most appropriate image below to create a thumbnail image for your bookmark:</a></p>'+
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                '<p>Don\'t like any of these images? <a href="http://www.wists.com/s.php?c=&r='+location+'&title='+document.title +'">Create a thumbnail screenshot</a> instead!</p>'+
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function resizeImage(img) {

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        var img_aspect_ratio = Math.round((img_width / img_height) * 100) / 100;

        var max_width = 120;
        var max_height = 90;
        var max_aspect_ratio = Math.round((max_width / max_height) * 100) / 100;

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        var new_img_width = 0;
        var new_img_height = 0;
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                new_img_height = max_height;
                new_img_width = Math.round(new_img_height * img_aspect_ratio);

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        } else {
                new_img_width = max_width;
                new_img_height = max_height;
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        img.style.width = new_img_width + "px";
        img.style.height = new_img_height + "px";
        new_aspect_ratio = Math.round((new_img_width / new_img_height) * 100) / 100;

//      alert("new image size is " + new_img_width + "x" + new_img_height + "\n" + "new aspect ratio is " + new_aspect_ratio);
}

 
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