Question

There are 2 forms on my page. Lets say: their id’s form1, form2. For ex. text input with name="email" exists in all 2 forms.

How do I get the value of text input (named email) from exact form, lets say form1?

Answer 1

It should be as simple as:

var email = $('#form1 input[name="email"]').val();

Based on your comment, if you wanted to localize the search for your input field for the onsubmit event, you could do this:

$("#signup_form").submit(function () { 
    var email = $('input[name="email"]', this).val();
});

The $() overload takes a container in which to limit the scope of the search; my example will only look for inputs with name="email" within this (the form).