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POIs there a way to invoke JavaScript function, by calling element outside of form via script
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copied!<p>I am trying to call a simple function when a value is selected on the form. Problem is that I don't have access to the code where I can set the function directly on the field. </p> <p>If I were to have access I would simply write onChange event directly inside the element. Is there any way to call element inside the script and apply the onChange event there?</p> <p>Here is the my script currently. I am trying to take two values from separate fields and apply their sum to another field. </p> function changeQty () { var productName = MainForm.elements["ProductCode"].value; var Quantity1 = MainForm.elements["SELECT___"+productName+"___23"].value; var Quantity2 = MainForm.elements["SELECT___"+productName+"___24"].value; var QtyUpdated = Quantity1 + Quantity2; MainForm.elements["QTY."+productName].value = QtyUpdated; } <p>And here is the form element where I want the function to fire. I only have access to the header where script can be inserted, but not to elements on the page. Also form already has some other javascript. Can I have two onChange events?</p> <p> -12.00</p> <p>-11.50 -11.00 -10.50 -10.00 -9.50 -9.00 -8.50 -8.00 -7.50</p> <p>-7.00 -6.50 -6.00 -5.75 -5.50 -5.25 -5.00 -4.75 -4.50</p> <p>-4.25 -4.00 -3.75 -3.50 -3.25 -3.00 -2.75 -2.50 -2.25</p> <p>-2.00 -1.75 -1.50 -1.25 -1.00 -0.75 -0.50 +0.50 +0.75</p> <p>+1.00 +1.25 +1.50 +1.75 +2.00 +2.25 +2.50 +2.75 +3.00</p> <p>+3.25 +3.50 +3.75 +4.00 +4.25 +4.50 +4.75 +5.00 +5.25</p> <p>+5.50 +5.75 +6.00   </p>

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