function stripBlanks(fld) 
{
	var result = "";
	var c = 0;
	for (i=0; i<fld.length; i++)
	{
		if (fld.charAt(i) != " " || c > 0)
		{
			result += fld.charAt(i);
			if (fld.charAt(i) != " ") c = result.length;
		}
	}
	return result.substr(0,c);
}

function validField(fld)
{
	fld = stripBlanks(fld);
	if (fld == '') return false;
	return true;
}