function SelectOptions(elementobj,id,freqid,startdateid,enddateid) {
  var f=document.getElementById(id),valueArray=elementobj.value.split("_");
  var freq=document.getElementById(freqid),startdate=document.getElementById(startdateid),enddate=document.getElementById(enddateid);
  f.name="amt__"+valueArray[1];
  if (freq) {
    freq.name="frequencypk"+valueArray[1];
  }
  if (startdate) {
    startdate.name="startdate"+valueArray[1];
  }
  if (enddate) {
    enddate.name="enddate"+valueArray[1];
  }
  f.value=valueArray[2];
  if (!(elementobj.options[0].selected) && valueArray[2]==0.00) {
    f.readOnly=false;
    f.focus();
  }
  else {
    f.readOnly=true;
  }
  var selects=document.getElementsByTagName("select"),selected=new Object();
  for (var i=0;i<selects.length;i++) {
    var select=selects[i];
    if (select.name.indexOf("drop__")>-1) {
      selected[select.value]="";
    }
  }
  for (var i=0;i<selects.length;i++) {
    var select=selects[i];
    if (select.name.indexOf("drop__")>-1) {
      for (var n=1;n<select.options.length;n++) {
        var option=select.options[n];
        option.disabled=(option.value in selected && option.value!=select.value);
      }
    }
  }
}