gradepredictor.html

<p>
<script src="//code.jquery.com/jquery-1.2.1.min.js" type="text/javascript"></script>
<script type="text/javascript">/*<![CDATA[*/
<!-- v1.0 - Written by Prof Richard N Landers - rnlanders@odu.edu -->
var $maxpoints = 2000; 
var $j = jQuery.noConflict(); 
$j(document).ready(function(){    
	$j("#resultTable").hide();
	$j("#maxpoints").text($maxpoints);
	$j("#calcButton").click(function(){   
		var $currentgrade = $j("#currentgrade").val();
		var $percentgrade = $j("#percentgrade").val();
		if ($currentgrade > 0 && $maxpoints > $currentgrade && $percentgrade > 0 && 100 > $percentgrade) {
			$j("#resultTable").show();
			$j("#current").text($currentgrade);
			$j("#maxpointtotal").text($maxpoints);
			$j("#percent").text($percentgrade + "%");
			var $currentmax = Math.round($currentgrade / ($percentgrade / 100));
			$j("#currentmax").text($currentmax);
			var $maxadditional = $maxpoints - $currentmax;
			var $maxtotal = Math.round(+$currentgrade + $maxadditional);
			$j("#maximum").text($maxtotal);
			var $maxgrade = Math.round(100 * $maxtotal / $maxpoints);
			$j("#maxgrade").text($maxgrade + "%");
			var $cminus = Math.round(100 * (((.695 * $maxpoints) - $currentgrade) / $maxadditional));
			var $bminus = Math.round(100 * (((.795 * $maxpoints) - $currentgrade) / $maxadditional));
			var $aminus = Math.round(100 * (((.895 * $maxpoints) - $currentgrade) / $maxadditional));
			if (0 > $cminus || $cminus > 100) $cminus = "Impossible to earn this";
			else $cminus = $cminus + "%";
			if (0 > $bminus || $bminus > 100) $bminus = "Impossible to earn this";
			else $bminus = $bminus + "%";
			if (0 > $aminus || $aminus > 100) $aminus = "Impossible to earn this";
			else $aminus = $aminus + "%";
			$j("#cminus").text($cminus);
			$j("#bminus").text($bminus);
			$j("#aminus").text($aminus);
			var $minpossible = Math.round(100 * $currentgrade / $maxpoints) + "%";
			$j("#rangepossible").text($minpossible + " - " + $maxgrade + "%");
		} else { 
			alert("To use this calculator, you need to enter valid numbers in the two textboxes before clicking Calculate."); 
		}
	}); 
});
/*]]>*/</script>
</p>
<p>If you want to know your ability to earn certain grades given your current grades, use the calculator below.<br />You can find both of the values below by viewing your grades.</p>
<table>
<tbody>
<tr>
<td>How many points have you earned so far?<br /> (This should be between 0 and <span id="maxpoints">&nbsp;</span>.)</td>
<td><input type="text" id="currentgrade" /></td>
</tr>
<tr>
<td>What is your percentage grade so far?<br /> (This should be between 0 and 100; don't type a percent sign!)</td>
<td><input type="text" id="percentgrade" /></td>
</tr>
<tr>
<td colspan="2"><input type="button" id="calcButton" value="Calculate! - Results Appear Below" /></td>
</tr>
</tbody>
</table>
<table id="resultTable">
<tbody>
<tr>
<td>Current Points Earned:</td>
<td><span id="current">&nbsp;</td>
</tr>
<tr>
<td>Points Possible by End of Term:</td>
<td><span id="maxpointtotal">&nbsp;</span></td>
</tr>
<tr>
<td>Current Percentage:</td>
<td><span id="percent">&nbsp;</span></td>
</tr>
<tr>
<td>Points Possible So Far:</td>
<td><span id="currentmax">&nbsp;</span></td>
</tr>
<tr>
<td>Maximum Possible Points by End of Semester (all 100%s):</td>
<td><span id="maximum">&nbsp;</span></td>
</tr>
<tr>
<td>Maximum Possible Grade by End of Semester (all 100%s):</td>
<td><span id="maxgrade">&nbsp;</span></td>
</tr>
<tr>
<td>Average Grade Forward Needed to Earn C- (69.5%):</td>
<td><span id="cminus">&nbsp;</span></td>
</tr>
<tr>
<td>Average Grade Forward Needed to Earn B- (79.5%):</td>
<td><span id="bminus">&nbsp;</span></td>
</tr>
<tr>
<td>Average Grade Forward Needed to Earn A- (89.5%):</td>
<td><span id="aminus">&nbsp;</span></td>
</tr>
<tr>
<td><strong>Grade Range Possible:</strong></td>
<td><span id="rangepossible">&nbsp;</span></td>
</tr>
</tbody>
</table>