function showDiv(divId) {
		divId.style.display = 'block';
	}

	function hideDiv(divId) {
		divId.style.display = 'none';
	}
	
	function toggleDiv(divId){
		if( typeof( divId ) == 'string' ){
			divId = document.getElementById(divId);
		}
		
		if( divId.style.display == 'none' ){
			divId.style.display = 'block';
		}
		else{
			divId.style.display = 'none';
		}
	}
	
	
/**
 * show url in a popup
 */
function popup (url) {
	fenster = window.open(url, "", "width=700,height=700,top=68,left=100,resizable=yes,scrollbars=yes");
	// fenster.focus();
	// return false;
}