var tocheckusername=[]; 
var checked=''; 
var time = new Date(); 

function changeUsername(username) { 
   tocheckusername[tocheckusername.length] = username; 
} 
function checkUsername() { 

   if(checked!=tocheckusername[tocheckusername.length-1]) {    
      checked=tocheckusername[tocheckusername.length-1]; 
      frames['usernamecheck'].location='/_inc/checkUserName.php?username='+tocheckusername[tocheckusername.length-1]; 
   } 
   setTimeout('checkUsername()', 1000); 
}

function popUpWin(URL, width, height) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=1,resizable=0,width=" + width + ",height=" + height + "');");
}

// Form validation
function CheckLength(field, msg)
{
    if (field.value.length == 0)
    {
        alert(msg);
        field.focus();
        return false;
    }
    return true;
}
function FormValidate(register)
{
	with (register)
	{
		if (!CheckLength(userUsername, 'You must enter a username!'))
		{
			return false;
		}
		if (!CheckLength(userEmail, 'You must enter an email!'))
		{
			return false;
		}
		if (!CheckLength(userEmail2, 'You must re-enter an email!'))
		{
			return false;
		}
		if (!CheckLength(userPassword, 'You must enter in a password!'))
		{
			return false;
		}
		if (!CheckLength(userPassword2, 'You must re-enter in a password!'))
		{
			return false;
		}
	}
}