/**
 * @author geertb
 */
 
function makeActive(button){
			var button=button;
			//alert(document.getElementById(button).className);
			if (document.getElementById(button).className=="button-inactive"){
				document.getElementById(button).className="button-active";
			}
		}
		
function makeInactive(button){
			var button=button;
			//alert(document.getElementById(button).className);
			if (document.getElementById(button).className=="button-active"){
				document.getElementById(button).className="button-inactive";
			}
		}