script.js

    function watermarkIt(myArray, color) {
      for(var i=0; i<myArray.length; i++) {
        $(myArray[i][0]).watermark(myArray[i][1], {color: color});
      }
    }
    // How to Use
    watermarkIt( [
                    ['#edit-submitted-full-name', 'Full Name'],
                    ['#edit-submitted-email-address', 'Email Address'] ], '#000');