function toggleVisibility(arg)
{
   if(typeof arg == "string")
      arg = document.getElementById(arg);
   if(arg.style.visibility == "hidden")
      arg.style.visibility = "visible";
   else
      arg.style.visibility = "hidden";
}

function toggleDisplayChange(arg1, arg2)
{
	if( (typeof arg1 == "string") && (typeof arg2 == "string") ){

		arg1 = document.getElementById(arg1);
		arg2 = document.getElementById(arg2);

		if(arg1.style.display == "none")
		{
		arg1.style.display = "block";
		arg2.style.display = "none";
		}
		else
		{
		arg1.style.display = "none";
		arg2.style.display ="block";
		}
	}
}

function logon(calq1, calq2)
{
	if( (typeof calq1 == "string") && (typeof calq2 == "string") )
	{
		calq1 = document.getElementById(calq1);
		calq2 = document.getElementById(calq2);
	}
	if(calq1.style.display == "none")
	{
		calq1.style.display = "block";
		calq2.style.display = "block";
	}
	else
	{
		calq1.style.display = "none";
		calq2.style.display = "none";
	}
}