zentaoPHP has front.class.php with three classes built in, HTML, JS, and CSS, which are used to generate HTML tags to create a simple JS interaction.

1. html

• html::title($title) , to generate $title tag
  
• html::meta($name, $value) , to generate meta tag in html
• html::icon($url), to generate the code to call in icon
• html::rss($url, $title), to output rss。
• html::a($href, $title, $target, $misc)，to generate a hyperlink
  
• html::mailto($mailto, $title) , to generate a mailto link
  
• html::select($name, $options, $selected, $attr)，to generate tags
  
• html::radio($name, $options, $selected, $attr), to generate  a radio button
  
• html::checkbox($name, $options, $selected, $attr)，to generate a checkbox
• html::input($name, $value, $attr) , to generate a input box
  
• html::hidden($name, $value, $attr), to generate a hidden variable
  
• html::password($name, $value, $attr), to generate a password box
  
• html::textarea($name, $value, $attr), to generate a textarea
• html::file($name, $attr), to generate a file selection box
  
• html::submitButton($label, $attr) , to generate a submit buttion
• html::resetButton()，to generate a reset button
• html::commonButton($label, $attr), to generate a common button
• html::linkButton($label, $link, $attr)，to generate a bliink button

2. js

• js::import($url, $version) , to generate a js file call, version is to distinguish versions and aoid js files at the client not refreshing
• js::alert($message)，to generate  an alert
• js::error($errors)，an error warning, $errors can be arrays
• js::confirm($message, $okURL, $cancelURL, $okTarget, $cancelTarget)，selection prompt
  
• js::locate($url, $target)，redirecting page， target is the window that will be jumped to
  
• js::closeWindow(), close a window
  
• js::refresh($url, $target, $timeout)，refresh a page
  
• js::reload($window), reload a window automatically
  
• js::exportConfigVars()，ouput the required information of running zentaoPHP in $config to js
• js::execute($code)，execute js codes

3. css

• css:import($url, $version), to import a css file
  
• css::internal($css)，to generate codes