function checkForSubmit(event,btn) {
    if (event.keyCode == 13) {
        document.getElementById(btn).click();
        return false;
    } else {
        return true;
    }
}

function completeFolder() {
	if (event.keyCode == 32)
		document.getElementById('txtFolder').value += '_';
	else
		if ((event.keyCode >= 48 && event.keyCode <= 57) || (event.keyCode >= 65 && event.keyCode <= 90))
			document.getElementById('txtFolder').value += String.fromCharCode(event.keyCode).toLowerCase();	
}

function digits_only(e) {
	var c=e.which||e.keyCode;
	return c==8 || c==127 || (c>=48 && c<=57); //Only allow BS, DEL and digits
}