function hide_error_box(){
document.getElementById('errorback').style.visibility = 'hidden';
document.getElementById('error').style.visibility = 'hidden';
}

function show_hide(id)
{
	if (document.getElementById)
	{
		obj = document.getElementById(id);
		if (obj.style.display == "none" || obj.style.display == "")
		{
			obj.style.display = "block";
		}
		else
		{
			obj.style.display = "none";
		}
	}
}

function show(id)
{
	if (document.getElementById)
	{
		obj = document.getElementById(id).style.display = "block";
	}
}

function hide(id)
{
	if (document.getElementById)
	{
		obj = document.getElementById(id).style.display = "none";
	}
}