function getresults(){
	var doStuff = new Ajax("grds.php",{postBody: $('gradeform'),update: 'grds'}).request();
	document.gradeform.login.value='';
	document.gradeform.password.value='';
	document.getElementById('grds').style.display='';
}
function closeres(){
	document.getElementById('grds').innerHTML='';
	document.getElementById('grds').style.display='none';
}