JavaScript Calculation 1

[cdumigan]

Hi,
I am trying to write a javascript function that will take the numbers inputted into text boxes, multiply them, and display the result in a third text box.
For example, I have two text boxes, v_tech_imp and v_tech_imp_prob, and I want to create a function that will multiply these two values and display the result in a third text box called v_composite_impact. Ideally I would also like to have this happen without the need to click a button i.e. dynamically.
I am having great difficulty in doing this, so any help would be greatly appreciated. Thanks a million in advance,
C

 

[TWillard]

Try this out:


<script language=&quot;javascript&quot;>

function multiply()
{
var results = document.form1.v_tech_imp.value * document.form1.v_tech_imp_prob.value;
document.form1.v_composite_impact.value=results;
}
</script>

<form name=form1>

<input type=text name=v_tech_imp onChange=&quot;javascript:multiply();&quot;>
<br>
<input type=text name=v_tech_imp_prob onChange=&quot;javascript:multiply();&quot;>
<br>
<input type=text name=v_composite_impact>

 

[cdumigan]

This is fantastic. Thanks a million for your help!!
Regards,
C