Javascript trigger on "KeyPress" and "Paste"

I have a JavaScript that checks if a field equals to 15 characters, and if not the submit button is greyed out. This works perfetcly if i type in 15 characters manually, but not if i paste 15 characters. How can i make it check even when content is pasted in the field? Can i make it check for characters periodicly (seconds) or is there a function for "check on paste"? My script: ``` <script type="text/javascript"> jQuery(document).ready(function($){ $('input[type=submit]').attr("disabled","disabled"); $('input[name="item_meta[1234]"]').keypress(function() { //change # to the ID of your field if (document.getElementById("field_ygtw9u").value.length < 14) { //disable submit if "no" is selected $('input[type=submit]').attr("disabled","disabled"); } else { //enable the submit button $('input[type=submit]').removeAttr('disabled'); } }); }); </script> <form> <div id="frm_field_1234_container" class="frm_form_field form-field frm_required_field frm_top_container"> <label class="frm_primary_label">Minimun 15 char: <span class="frm_required"></span> </label> <input type="text" id="field_ygtw9u" name="item_meta[1234]" value="" maxlength="15" class="required"/> <p class="submit"> <input type="submit" value="Submit" /> </p> </form> ```