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<?php
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// main menu
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echo '
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>The Book of Shaders'.$subtitle.'</title>
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<link href="/favicon.gif" rel="shortcut icon"/>
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<meta name="keywords" content="shader,openGL,WebGL,GLSL,book,procedural,generative" />
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<meta name="description" content="Gentle step-by-step guide through the abstract and complex universe of Fragment Shaders." />
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<meta name="twitter:site" content="@bookofshaders">
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<meta name="twitter:title" content="The Book Of Shaders">
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<meta name="twitter:description" content="Gentle step-by-step guide through the abstract and complex universe of Fragment Shaders.">
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<meta name="twitter:creator" content="@patriciogv">
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<meta name="twitter:domain" content="thebookofshaders.edu">
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<link href="/favicon.gif" rel="shortcut icon"/>
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<!-- Highlight -->
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<link type="text/css" rel="stylesheet" href="'.$path.'/css/github.css">
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<script type="text/javascript" src="'.$path.'/src/highlight.min.js"></script>
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<!-- GlslCanvas -->
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<script type="text/javascript" src="https://rawgit.com/patriciogonzalezvivo/glslCanvas/master/build/GlslCanvas.min.js"></script>
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<!-- GlslEditor -->
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<link type="text/css" rel="stylesheet" href="https://rawgit.com/patriciogonzalezvivo/glslEditor/gh-pages/build/css/main.css">
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<script type="application/javascript" src="https://rawgit.com/patriciogonzalezvivo/glslEditor/gh-pages/build/js/glslEditor.js"></script>
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<link type="text/css" rel="stylesheet" href="'.$path.'/css/style.css">
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<!-- Translation -->
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';
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if ( $language !== '' && file_exists($path.'/css/style'.$language.'.css') ) {
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echo '<link type="text/css" rel="stylesheet" href="'.$path.'/css/style'.$language.'.css">';
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}
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echo '
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</head>
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<body>
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';
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?>
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