function initialiseDate(field) {
  var now = new Date();
  var today = now.getDate();
  var month = now.getMonth();
    var monthName = new Array(12)
      monthName[0]="January ";
      monthName[1]="February ";
      monthName[2]="March ";
      monthName[3]="April ";
      monthName[4]="May ";
      monthName[5]="June ";
      monthName[6]="July ";
      monthName[7]="August ";
      monthName[8]="September ";
      monthName[9]="October ";
      monthName[10]="November ";
      monthName[11]="December ";
  var year = now.getFullYear();
if (field.value=="") {
 // field.value=monthName[month]+today+ ", "+year;
++month;
field.value=year+'-';
if(month<10) {field.value += '0';}
field.value += month+'-';
if(today<10) {field.value += '0';}
field.value += today;
} 
}

function initialiseTimezoneOffset(field) {
  var now = new Date();
  field.value = now.getTimezoneOffset();
}