Javascrip alert box

Question

Hello,I am in need of help with getting an alert box to pop up when a text box has an "X".The top script is to dispaly an X is a sum is over 20. I would like this to trigger the alert box. If the sum is below 20 then no action.  Currently the alert box pops up after each click regaurdless of the sum.var TS = Number(this.getField("TS").value);if (TS>=20) event.value = "X";if ("X")app.alert("message", 3);else event.value = "";Thanks in advanced.

BarlaeDC · Accepted Answer

Hi,

So you only want the alert to show when you are changing the value to "X" in which case you should be able to do this

var TS = Number(this.getField("TS").value);
if (TS>=20) {
event.value = "X";
app.alert("message", 3);
}else {
event.value = "";
}

Test Screen Name · Answer

Just some more info. You may wonder whyif (TS>=20) event.value = "X";if ("X")app.alert("message", 3);did not work.The answer is that you say if("X") but JavaScript has no idea what you mean by that. You know that you mean the last value you set. The test would need to beif ( event.value == "X")  -- notice == not =.But using { several ; different ; things } is a nicer solution.

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