Easily done. Replace all
document.getElementById('yourid')
with
$('#yourid')
Replace all
.value=""
with
.val('')
Replace all
.disabled = true (or false)
with
.prop('disabled', true) // or false
Replace all
.checked = true (or false)
with
.prop('checked', true) // or false
and all
.checked
with
.prop('checked')
solved To rewrite a javascript to jQuery [closed]