var bo_ns_id = 0;

function startIeFix(){
  if(isIE()){
    document.write('<div id="bo_ns_id_' + bo_ns_id + '"><!-- ');
  }
}

function endIeFix(){
  if(isIE()){
    document.write('</div>');
    var theObject = document.getElementById("bo_ns_id_" + bo_ns_id++);
    var theCode = theObject.innerHTML;
    theCode = theCode.substring(4 ,9+theCode.indexOf("</object>"))
    document.write(theCode);
  }
}

function isIE(){
  // only for Win IE 6+
  // But not in Windows 98, Me, NT 4.0, 2000
  var strBrwsr= navigator.userAgent.toLowerCase();
  if(strBrwsr.indexOf("msie") > -1 && strBrwsr.indexOf("mac") < 0){
    if(parseInt(strBrwsr.charAt(strBrwsr.indexOf("msie")+5)) < 6){
      return false;
    }
    if(strBrwsr.indexOf("win98") > -1 ||
       strBrwsr.indexOf("win 9x 4.90") > -1 ||
       strBrwsr.indexOf("winnt4.0") > -1 ||
       strBrwsr.indexOf("windows nt 5.0") > -1)
    {
      return false;
    }
    return true;
  }else{
    return false;
  }
}

function goForm(requiredList,theForm){ 
  var tmessage = 'One or more fields requires your attention:\n\n';
  var tmessage_orig = tmessage;
  if(requiredList.indexOf("contact_name")>=0){ if(theForm.contact_name.value == ''){tmessage = tmessage + '- Your full name\n'}}
  if(requiredList.indexOf("contact_dayphone")>=0){ if(theForm.contact_dayphone.value == ''){tmessage = tmessage + '- Your telephone number\n'}}
  if(requiredList.indexOf("contact_email")>=0){ if(theForm.contact_email.value == ''){tmessage = tmessage + '- Your email address\n'}}
  if(tmessage != tmessage_orig) {alert(tmessage); theForm.gobutton.disabled = false;}
  else{theForm.gobutton.disabled = true; theForm.submit();}
}