function checkForm(form1)
{
pattern2 = /^[\s]+$/

if(document.form1.username.value == "") {
	alert("Please enter your username");
	document.form1.username.focus();
	return false;
}
username=document.form1.username.value

if (username.match(pattern2)){
	alert("Please enter a valid username");
	document.form1.username.focus();
	return false;
}
if(document.form1.password.value == "") {
	alert("Please enter your password");
	document.form1.password.focus();
	return false;
}
password=document.form1.password.value
if (password.match(pattern2)){
	alert("Please enter a valid password");
	document.form1.password.focus();
	return false;
}
return true;
}