function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}
function hideAnswers() {
	for (i = 1; i <= 22; i++) {
		if (document.getElementById){
  			if ( target = document.getElementById('hide' + i) ) {
				target.style.display = 'none';
			}
		}
	}
}
function toggle( targetId ){
	if (document.getElementById){
		target = document.getElementById( targetId );
		if (target.style.display == 'none'){
			target.style.display = '';
		} else {
			target.style.display = 'none';
  		}
	}
}