// JavaScript Document
$currentTab = 'tab1';

function changeTab($id){
	if($currentTab == null){
		$currentTab = 'tab1';
	}
	//alert($currentTab);
	
	$($currentTab).className = '';
	//alert($currentTab);
	$($currentTab+"_content").className = 'hideNews';
	
	$($id).className = 'current';
	$($id+"_content").className = 'showNews';
	$currentTab = $id;
	
	
	//alert($($id).className);
}