Question

$(document).keypress(function (e) {
    if (e.which == 13) {
        filtruj();
        return false;
    }
    return false;
});

I want to call filtruj() whenever the user presses the Enter key and prevent a page submit.

Normally this function is called with click on <a href="#" id="filterButton" onclick="filtruj();" class="t-button t-grid-add">Filtruj</a> element.

What is happening instead is that I am unable to type anywhere in the form fields.

Answer 1

Remove the last return false, you are preventing all keys being from being input.

$(document).keypress(function (e) {
    if (e.which == 13) {
        filtruj();
        return false;
    }
});