How To Check If User Pressed ENTER Key

How to check if user pressed ENTER key while entering data into <input type=”text”>
Well, simply add an onKeyPress event:

<input type=”text” onkeypress=”return goReturn()”>

and use the following function:

function goReturn() {
getEvent=event.keyCode;
if (getEvent == “13″) {
document.forms[0].submit();
return false;
} else {
return true;
}
}

this will submit the form when the return key is pressed (code 13)