function chkLog()
{

if (document.mainform.c_username.value == "")
	{
		alert
		("Please enter your admin username.");
		document.mainform.c_username.focus();
		return false;
	}
	
if (document.mainform.c_password.value == "")
	{
		alert
		("Please enter your admin password.");
		document.mainform.c_password.focus();
		return false;
	}
}