Jquery is not firing from controls generated from jquery

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HTML

jQuery

I have a jQuery function that generates input text on click of some add button.
generated code looks like:

<input type="text" id="txtNum" name="some model binding" class="FireEvent" />


there is a jquery function:
$(".FireEvent").change(
alert("called");
);

all this code is in .Ready() function still on text change this event is not triggered.

i have also tried $(".FireEvent").bind("input",function(){}); this is also not working.

However if i try to fire this event from controls that are in my view it works perfect.
i.e.
@Html.TextBox("name", "", new { @class = "FireEvent", @id = "someId" });
Or
<input type="text" id="someId" name="some binding" class="FireEvent" />