How to trigger a function when i press enter in a text box

[sahilcoolsmart]

I am doing some AJAX project. And in that i have a form which gets submitted through AJAX. But what i want is when users press enter the submitting function should be called.
Users have to press submit button as of now, and i don't want that.

[bibel]

When you press enter in a text box, the form is submited.
You just need to add onsubmit="return yourAjaxFunction()" to the form element.
Just make sure yourAjaxFunction returns false.