var opera = (navigator.appName.indexOf("Opera") != -1) ? true : false;
var firefox = navigator.userAgent.toLowerCase(); 
    firefox = (firefox.indexOf("firefox") != -1) ? true : false;
var safari = navigator.userAgent.toLowerCase();
    safari = (safari.indexOf("safari") != -1) ? true : false;
var msie_only = (navigator.appName.indexOf("Microsoft") != -1) ? true : false;
var msie_old = false; //all versions of MSIE older than 7
var msie_70  = false; // MSIE vesrion 7.0 or newer
var msie_60  = false; // only MSIE 6.0

if (msie_only) {
  fullVerStr = navigator.appVersion;
  verStr = fullVerStr.substring(fullVerStr.indexOf('MSIE')+4,fullVerStr.length);
  verStr = verStr.substring(0,verStr.indexOf(';'));
  msie_old = (parseFloat(verStr) <  7.0) ? true : false;
  msie_70  = (parseFloat(verStr) >= 7.0) ? true : false;
  msie_60  = (parseFloat(verStr) == 6.0) ? true : false;
}

document.writeln('<style type="text/css">\n/*<![CDATA[*/\n');
if (msie_old) {
    document.writeln('div.CentreColumn {margin-left:189px;}\n');
    document.writeln('div.CentreColumnWide {margin-left:189px;}\n');
    document.writeln('.CheckBox, .Radio {margin:0px 3px 0px 0px;}\n');
}
if (opera) {
   document.writeln('.NavBar2 .SearchSet select {font-size:12px;}\n');
   document.writeln('.CheckBox, .Radio {margin:2px 3px 0px 5px;}\n');
}
if (safari) {
  document.writeln('.CheckBox, .Radio {margin:3px 3px 0px 5px;}\n');
}
if (firefox) {
  document.writeln('.CheckBox, .Radio {margin:3px 3px 0px 6px;}\n');
}

document.writeln('/*]]>*/\n</style>\n');

function insertEmail(part_1, part_2, part_3) {
  joined_address = part_1 + "@" + part_2 + "." + part_3;
  document.write('<a href="mailto:' + joined_address + '" title="' + joined_address + '">' + joined_address + '</a>');
}

function clearField(field_to_clear, initial_value) {
  if (initial_value==field_to_clear.value) field_to_clear.value="";
} 

function fillField(field_to_clear, initial_value) {
  if (field_to_clear.value=="") field_to_clear.value=initial_value;
}