function valid_mobilenumber(formname, mfield, errmsg)
{
	var mystring = mfield.value;
	var myvalid= "0123456789,";
	var allValid = true;
	for (i = 0;  i < mystring.length;  i++)
	{
		ch = mystring.charAt(i);
		for (j = 0;  j < myvalid.length;  j++)
		if (ch == myvalid.charAt(j))
			break;
		if (j == myvalid.length)
		{
			allValid = false;
			break;
		}
	}
	if (mystring != "")
	{
		if (mystring.substring(0,2) != "98")
		{
			allValid = false;
		}
	}
	if (mystring != "")
	{
		if (mystring.length < 9)
		{
			allValid = false;
		}
	}
	if (!allValid)
	{
		alert(errmsg);
		mfield.focus();
		return false;
	}
	else
	{
		return true;
	}
}