// JavaScript Document
function checkform(form) {

   // check passwords match

        if (form.name1.value == "") {
                alert("You must enter your name. Please try again.");
                form.name1.focus();
                return false;

        } else 

        if (form.jobtitle.value == "") {
                alert("You must enter your job title. Please try again.");
                form.jobtitle.focus();
                return false;

        } else
		
		if (form.company.value == "") {
                alert("You must enter your company name. Please try again.");
                form.company.focus();
                return false;

        } else
		
		if (form.address1.value == "") {
                alert("You must enter your company address. Please try again.");
                form.address1.focus();
                return false;

        } else 
		
		if (form.country.value == "") {
                alert("You must enter your country. Please try again.");
                form.country.focus();
                return false;

        } else
		
		if (form.telephone.value == "") {
                alert("You must enter your telephone number so that we can contact you regarding the study. Please try again.");
                form.telephone.focus();
                return false;

        } else
		
		if (form.email.value == "") {
                alert("You must enter your e-mail address so that we can contact you regarding the study. Please try again.");
                form.email.focus();
                return false;

        } else     


// test if valid email address, must have @ and .
var checkEmail = "@.";
var checkStr = form.email.value;
var EmailValid = false;
var EmailAt = false;
var EmailPeriod = false;
for (i = 0;  i < checkStr.length;  i++)
{
ch = checkStr.charAt(i);
for (j = 0;  j < checkEmail.length;  j++)
{
if (ch == checkEmail.charAt(j) && ch == "@")
EmailAt = true;
if (ch == checkEmail.charAt(j) && ch == ".")
EmailPeriod = true;
  if (EmailAt && EmailPeriod)
break;
  if (j == checkEmail.length)
break;
}
// if both the @ and . were in the string
if (EmailAt && EmailPeriod)
{
EmailValid = true
break;
}
}
if (!EmailValid)
{
alert("The e-mail address you entered does not appear to be valid. Please enter a valid e-mail address to continue.");
form.email.focus();
return (false);
} else

// Make sure one of the radio buttons is selected
  radioOption = -1;
  for (i=0; i < form.surveycost.length; i++) {
    if (form.surveycost[i].checked) { 
         radioOption = i;
    }
  }
    if (radioOption == -1) {
      window.alert("You must select an invoice option. Please try again.");
      return false;
    }



}



function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_findObj(n, d) { //v4.01
  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);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

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_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_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];}
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);