Mask ZipCode to add - after 5 digit

[Master]

How can I mask input to  to add - after 5 digit zipcode in a submission page

[MayMusic]

Add the code below to the Footer of the page replace InsertRecordZip with ID of your zipcode field: InsertRecordFIELDNAME

 

<SCRIPT LANGUAGE="JavaScript">

function zip()
{

var zipcode = document.getElementById("InsertRecordZip").value; // here you get what the end-user typed
if (zipcode != "") {
document.getElementById("InsertRecordZip").value = (zipcode.replace(/[^\d]/g, '')); // then you strip off all the spaces

var zipcode1 = document.getElementById("InsertRecordZip").value;
document.getElementById("InsertRecordZip").value =  zipcode1.substring(0,5) + "-" + zipcode1.substring(5,10);
}
}

document.getElementById("InsertRecordZip").onchange=zip;
</SCRIPT>