Copy textarea to hidden field using jQuery

by Michel Plungjan

HTML

<textarea name="sc_text1c" id="sc_text1c"></textarea><br/>
This field could be hidden
<input type="text" name="sc_text1h" id="sc_text1h" />
<hr/><textarea name="sc_text2c" id="sc_text2c"></textarea><br/>
This field could be hidden
<input type="text" name="sc_text2h" id="sc_text2h" />

JavaScript

$(function() {
    $(":text[name^='sc']").each(function() { // change to :hidden
      var id = this.id.substring(0,this.id.length-1)+"c";
      var hid = $(this);                           
      $("#"+id).on("keyup",function() {
          hid.val($(this).val());
        });
    });
});