object HTMLInputElement error with .value

Question

I have a problem with returning "[object HTMLInputElement]", this is my code:
HTML:
<input type="text" id="numb7">
JavaScript:
var numb7 = document.getElementById("numb7").value;

When I alert numb7 it returns:
[object HTMLInputElement]

Can anyone help me?

For the full code: Full Code

Solution

Perhaps it's an old MSIE compatibility feature where all id and name attributes are added to the global object. Try giving your variable (or id) a different name.

Comments

[user3722860]

When I change the id to "numbEnd", I get this error: ReferenceError: Can't find variable: numb7

[Nisse Engström]

@user3722860: I don't think the scope of the variable numb7 in calc() extends to the calcNumbA() function. You need the full document.getElementById(...) reference.