function showLogin()
	{
		var which = "login";
		if (document.getElementById(which).style.display == "block")
			{
				document.getElementById(which).style.display = "none";
			}
		else
			{
				document.getElementById(which).style.display = "block";
			}
	}

function entra(which)
	{
		var pippo = document.getElementById(which).value;
		if(pippo == which)
			{
				if(navigator.userAgent.indexOf("AppleWebKit") != -1 || navigator.userAgent.indexOf("Opera") != -1 || navigator.userAgent.indexOf("Safari") != -1)
					{
						if(which == 'password')
							{
								document.getElementById(which).type='password';
							}
						document.getElementById(which).value="";
						document.getElementById(which).focus();
					}
				else
					{
						document.getElementById(which).value="";
						if(which == 'password')
							{
								document.getElementById(which).type='password';
							}
					}
			}
	}

function esci(which)
	{
		var pippo = document.getElementById(which).value;
		if(pippo == "")
			{
				document.getElementById(which).value=which;
			}
	}
		
function more(which)
	{
		if (document.getElementById(which).style.display == "block")
			{
				document.getElementById(which).style.display = "none";
			}
		else
			{
				document.getElementById(which).style.display = "block";
			}
	}