[jQuery] How to access a field in a form

[jQuery] How to access a field in a form


Hi,
What is the best way to access a field in a form when I already have
an jQuery object referencing form.
function myFunction(formName, fieldName){
    var formjQueryObject = jQuery('#'+formName);
var formField = jQuery("#"+formName+" [name='" + fieldName +
"']");
or can I somehow utilize "formjQueryObject" and make field
selection faster?
}
<form name="myForm_1" id="myForm_1" >
    <input type="text" name="login" />
<form name="myForm_2" id="myForm_2" >
    <input type="text" name="login" />
myFunction("myForm1", "login");