var win= null;

  function NewWindow(fieldName) {
    document.form1.fieldName.value=fieldName
    win2=window.open('popup.htm','colorPop','height=130,width=274,top=150,left=100,scrollbars=no,resizable=no');
  }

  function doIt(color) {
    eval('document.form1.' + document.form1.fieldName.value + '.value=\'' + color + '\'');
  }