function switchTab( prefix, id, total ) {
		var i;
		
		for ( i = 1 ; i <= total ; i++ ) {
			document.getElementById( prefix + "Bar" + i ).className								= "tab_deactive";
			document.getElementById( prefix + "Content" + i ).style.display 			= "none";
		}

		document.getElementById( prefix + "Bar" + id ).className								= "tab_active";
		document.getElementById( prefix + "Content" + id ).style.display 				= "";
	}
	
	function showCoverCaption( obj, display ) {
		for ( var i = 0 ; i < obj.childNodes.length ; i++ )
			if ( 	obj.childNodes[ i ].className == "cover_caption" 	)
				obj.childNodes[ i ].style.display					= display;
	}
	
	function switchMemberTab( prefix, id, total ) {
		var i;
		
		for ( i = 1 ; i <= total ; i++ ) {
			document.getElementById( prefix + "Bar" + i ).className								= "tab_deactive_member";
			document.getElementById( prefix + "Content" + i ).style.display 			= "none";
		}

		document.getElementById( prefix + "Bar" + id ).className								= "tab_active_member";
		document.getElementById( prefix + "Content" + id ).style.display 				= "";
	}