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7.6

Simple math function

Asked by rcmb in JavaScript

Tags: math, function, simple

I have some script that when the user completes two text boxes the third is populated with the results. My problem is I need to ensure the top number is greater than or equal to the bottom number when the equation is division or subtraction.

Here is my code:

<SCRIPT language = JavaScript>
<!--
function calculate() {
A = document.problems.QuesTop.value
B = document.problems.QuesBottom.value
A = Number(A)
B = Number(B)
C = (A <%=varMod%> B)

if C < 0 && <%=varMod%> == '/' {
window.alert ("In division the top number must be greater than or equal to the lower number. Please correct this before proceeding.");
return false;
} else {
document.problems.QuesAnswer.value = C
return true;
}
}
//-->
</SCRIPT>

If I remove:

if C < 0 && <%=varMod%> == '/' {
window.alert ("In division the top number must be greater than or equal to the lower number. Please correct this before proceeding.");
return false;
} else {

and the extra } at the bottom the math function works great. With this in I never get the alert or calculate the form.

varMod is vbScript I use to determine the math type

the values are either + , -, *, or /

Please help!!

RCMB
[+][-]09/02/05 11:40 AM, ID: 14812569Accepted Solution

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About this solution

Zone: JavaScript
Tags: math, function, simple
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Solution Provided By: trailblazzyr55
Participating Experts: 2
Solution Grade: A
 
[+][-]09/02/05 10:38 AM, ID: 14812114Assisted Solution

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[+][-]09/02/05 11:49 AM, ID: 14812641Expert Comment

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[+][-]09/02/05 01:01 PM, ID: 14813158Author Comment

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[+][-]09/02/05 01:20 PM, ID: 14813271Expert Comment

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