why is this not working?!
html>
<head>
<title>JavaScript Excerise 2</title>
<script language = javascript>
function findGrade(){
var numericalgrade=document.myform.numout.value;
if (numericalgrade >= 90)
return("A");
else if ( numericalgrade>= 85)
return("B+");
else if (numericalgrade >= 80)
return("B");
else if (numericalgrade >= 75)
return("C+")
else if (numericalgrade >= 70)
return ("C")
else if (numericalgrade >= 60)
return ("D")
else return ("F");
}
</script>
</head>
<body>
<form name = "myform">
<p> Enter a numerical grade </p>
<input type = "text" name = "num" onclick = "document.myform.numout.value = findgrade()(document.myform.num.value)"/>
<br><BR>
<input type = "button" name = "mybutton" value = "Letter Grade"
onclick = "document.myform.numout.value = findgrade()"/>
<BR><BR>
<p> The Equivalent Letter Grade is </p>
<INPUT TYPE="text" Name="numout"/><BR>
</form>
</body>
</html>
