function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v3.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

// FOLOWING  07Jul09ww

function GetXmlHttpObject(){
    var xmlHttp=null;
    try{
        // Firefox, Opera 8.0+, Safari
        xmlHttp=new XMLHttpRequest();
    }
    catch (e){
        // Internet Explorer
        try{
            xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e){
            xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
        }
    }
    return xmlHttp;
}
    
function formQueryString(form) {
    var queryString = '';
    var element;
    
    for (i = 0; i < form.elements.length; i++) {
        element = form.elements[i];
    
        switch (element.type) {
            // Text, select, hidden, password, textarea elements
            case 'text':
            case 'hidden':
            case 'password':
            case 'textarea':
                queryString += element.name +'='+ escape(element.value) + '&';
                break;
            case "select-one":
                queryString += element.name +'=' + element.options[element.selectedIndex].value + '&';
                break;
        }
    }
    queryString = queryString.substr(0,(queryString.length - 1));
    return queryString;
}
    
function submitFormViaAjax(submitUrl, xmlHttpObject, formToSubmit){
    
    sumbitData = formQueryString(formToSubmit);
    xmlHttpObject.open("POST",submitUrl,true);
    xmlHttpObject.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
    xmlHttpObject.send(sumbitData);
}


function checkEmailAddress()
{
    var elEmail  = document.getElementById( "fszEmail").value;

    console.log( "checkEmailAddress( %s )", elEmail );

  if ( szEmailAddr == "" || szEmailAddr == 'Your e-mail...')
  {
    // no email address input
    elEmail.value = 'Your e-mail...';
    elEmail.focus();
    return false;
  }
  else
  {
    // validate email address
    var email_reg_exp = /^([a-zA-Z0-9_\.\-\+])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
    if (email_reg_exp.test(elEmail))
      return true;
    elEmail.value = 'Your e-mail...';
    elEmail.focus();
    return false;
  }
}

function clearDefaultText(thisfield, defaulttext) {
  if (thisfield.value == defaulttext) {
    thisfield.value = '';
  }
}

function recallDefaultText(thisfield, defaulttext) {
  if (thisfield.value == '') {
    thisfield.value = defaulttext;
  }

  function submitHomePageEmail() {
      xmlHttp=GetXmlHttpObject();
      if (xmlHttp==null){
          alert ("Your browser does not support AJAX!");
          return;
      }

      xmlHttp.onreadystatechange=function(){
//          if (xmlHttp.readyState==4 && xmlHttp.status==200) {
//              document.getElementById('BestPriceFoundItCheaper').innerHTML = xmlHttp.responseText;
          }
      };
      submitFormViaAjax('http://www.joegoode.net/cgi-bin/maillist.cgi', xmlHttp, document.getElementById('formList'));
  }

  function toggleSelects(visiblity){
      selectionItems = document.getElementsByTagName("SELECT");
      for (a=0;a<selectionItems.length;a++){
          selectionItems[a].style.visibility= visiblity;
      }
  }