Introduction to JavaScript

Working with Multiple Functions

This page uses a function, Percentage(sNum, sPerc), is called from a function, GetNumbers() which gets the values from text boxes.

Enter a number:
Enter the percentage you want:

<SCRIPT>

function GetNumbers(form) {
     var sNumber = form.txtNumber.value;
     var sPercentage = form.txtPercent.value;

     form.txtResult.value = Percentage(sNumber, sPercentage);
}

function Percentage(sNum, sPerc) {
     var nResult = sNum * (sPerc / 100);

     return nResult;
}

</SCRIPT>

<FORM>
     Enter a number: <INPUT TYPE="text" NAME="txtNumber">
     Enter the percentage you want: <INPUT TYPE="text" NAME="txtPercent">
     <INPUT TYPE="button" VALUE="Result" onClick="GetNumbers(this.form)">
     <INPUT TYPE="text" NAME="txtResult">
</FORM>