7-1 write_Nav_html()

###############################################################################
#  產生 nav.html
###############################################################################
function write_Nav_html() {
	global $ugmKind, $DIRNAME;

	//---- 過濾資料 -------------------------*/
	$myts = &MyTextSanitizer::getInstance();

	# ----得到陣列 ----------------------------
	$ofsn = 0;
	$level = 1;
	$nav_arr = $ugmKind->get_use_theme_nav_html($ofsn, $level);

	$nav_body_html = "";
	#第1層
	foreach ($nav_arr as $nav) {
		$target = $nav['target'] ? " target='_blank'" : "";
		$url = $nav['url'] ? $myts->addSlashes($nav['url']) : "#";
		$title = $nav['title'] ? $myts->addSlashes($nav['title']) : "";
		$nav_body_html .= "				<li><a class='page-scroll' href='{$url}' {$target}>{$title}</a></li>\n";
	}
	/*

	*/
	$nav_html .= "<nav id='mainNav' class='navbar navbar-default navbar-fixed-top <{if \$xoops_dirname != \"system\"}>affix<{/if}>'>\n";
	$nav_html .= "	<div class='container'>\n";
	$nav_html .= "		<!-- Brand and toggle get grouped for better mobile display -->\n";
	$nav_html .= "		<div class='navbar-header'>\n";
	$nav_html .= "			<button type='button' class='navbar-toggle collapsed' data-toggle='collapse' data-target='#bs-example-navbar-collapse-1'>\n";
	$nav_html .= "				<span class='sr-only'>Toggle navigation</span> Menu <i class='fa fa-bars'></i>\n";
	$nav_html .= "			</button>\n";
	$nav_html .= "			<a class='navbar-brand page-scroll' href='#page-top'><{\$xoops_sitename}></a>\n";
	$nav_html .= "		</div>\n";
	$nav_html .= "		<!-- Collect the nav links, forms, and other content for toggling -->\n";
	$nav_html .= "		<div class='collapse navbar-collapse' id='bs-example-navbar-collapse-1'>\n";
	$nav_html .= "			<ul class='nav navbar-nav navbar-right'>\n";
	$nav_html .= $nav_body_html;
	$nav_html .= "			</ul>\n";
	$nav_html .= "		</div>\n";
	$nav_html .= "		<!-- /.navbar-collapse -->\n";
	$nav_html .= "	</div>\n";
	$nav_html .= "	<!-- /.container-fluid -->\n";
	$nav_html .= "</nav>\n";

	$file_name = "creative_nav.html";

	#---- 檢查資料夾
	mk_dir(XOOPS_ROOT_PATH . "/uploads/{$DIRNAME}/tpl");

	$file = XOOPS_ROOT_PATH . "/uploads/{$DIRNAME}/tpl/" . $file_name;
	$f = fopen($file, 'w'); //以寫入方式開啟文件
	fwrite($f, $nav_html); //將新的資料寫入到原始的文件中
	fclose($f);
}