function showCText(target, el){
	document.getElementById(target).style.display = "block";
	document.getElementById(el).style.fontWeight = "bold";
}

function hideCText(target, el){
	document.getElementById(target).style.display = "none";
	document.getElementById(el).style.fontWeight = "normal";
}

function checkLogin(){
	var form = document.loginForm;
	if(form.username.value.length == 0){
		alert("Username must not be empty!");
		return;
	}
	else if(form.password.value.length == 0){
		alert("Password must not be empty!");
		return;
	}
	
	else form.submit();
}

function getRequestParameter(name){
	
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return results[1];
	
}

if(getRequestParameter('loginFailed').length > 0)
	alert("Login failed! Wrong username / password.");