includeLibs.user_langswitch = fileadmin/user_langswitch.php
 
temp.languageswitcher = COA
temp.languageswitcher {
	10 = USER_INT
	10.userFunc = user_langswitch->start
	10.userFunc.lang = en,de,es,pt,ru,me
	10.userFunc.label = en:English (Americas/Europe),me:English (Middle East/Asia-Pac),de<img src="typo3conf/ext/mm_forum//res/smilies/icon_biggrin.gif" alt="icon_biggrin.gif" />eutsch (German), ru:Russian (Russian), es:, pt:,
}
 
page.10.marks.languageswitcher < temp.languageswitcher

<?php
 
	class user_langswitch {
 
		var $debug = 0; // debug output (viewable code)
 
		// Main function for languageswitcher selectbox
		function start($content='', $conf=array()) {
			// config
			global $TSFE;
    		$this->cObj = $TSFE->cObj; // cObject
			$this->label = array(); $code = $all = ''; // init
			$this->lang = t3lib_div::trimExplode(',', $conf['userFunc.']['lang'], 1); // array with languages
			$tmp_label = t3lib_div::trimExplode(',', $conf['userFunc.']['label'], 1); // array with labels
			foreach ($tmp_label as $key => $value) { // one loop for every label
				$tmp_curlabel = t3lib_div::trimExplode(':', $value, 1); // split on :
				$this->label[$tmp_curlabel[0]] = $tmp_curlabel[1]; // e.g. "en" => "switch to english"
			}
 
			// let's go
			if (is_array($this->label) && count($this->label) > 0 && is_array($this->lang) && count($this->lang) > 0) { // only if settings available (label and lang keys)
				foreach ($this->label as $key => $value) { // one loop for every allowed label
					if ($value) {
						$code .= '<option value="' . $this->makeLink($key) . '"' . ($this->lang[$_GET['L']] == $key ? ' selected="selected"' : '') . '>'; // option prefix
						$code .= $value; // value
						$code .= '</option>'; // option postfix
					}
				}
 
				$all .= $this->debug ? '<textarea cols="50" rows="20">' : '';
				$all .= '<form name="language" action="" class="languageselectform">';
				$all .= '<select name="select" onchange="goto(this.form)" class="languageselect">';
				$all .= $code;
				$all .= '</select>';
				$all .= '</form>';
				$all .= $this->addJS();
				$all .= $this->debug ? '</textarea>' : '';
			}
 
			// return
			return $all;
		}
 
 
		// Function makeLink() generate localized link from language key (en, de)
		function makeLink($key) {
			$tmp_lang = array_flip($this->lang); // get array like en=>0, de=>1
			return '/'.$this->cObj->typolink('x', array('returnLast' => 'url', 'parameter' => $GLOBALS['TSFE']->id, 'additionalParams' => '&L='.$tmp_lang[$key])); // return link
		}
 
 
		// Add javascript for redirection
		function addJS() {
			$js = '<script type="text/javascript">
						function goto(form) { 
							var index = form.select.selectedIndex;
							if (form.select.options[index].value != "0&quot<img src="typo3conf/ext/mm_forum//res/smilies/icon_wink.gif" alt="icon_wink.gif" /> {
								location = form.select.options[index].value;
							}
						}
					</script>
				';
			return $js;
		}
 
 
	}
 
?>