function checklogin(frm) {
	if (frm.username.value == '') {
		alert ("Please enter email address.");
		frm.username.focus();
		return false;
	}
	
	if (frm.password.value == '') {
		alert ("Please enter password.");
		frm.password.focus();
		return false;
	}
	else {
		var str = frm.password.value;
		
		if (str.length < 8) {
			
			alert ("Your password must have at least 8 characters.");
			frm.password.value = "";
			frm.password.focus();
			return false;
			
		}
		else if (str.length > 16) {
			alert ("Your password must not exceed 16 characters");
			frm.password.value = "";
			frm.password.focus();
			return false;
		}
		
	}
	

	
	return true;
}