submitFlag = false

  function checkInput(form) {
	if(submitFlag == true)
	{
		alert('You have allready submitted form!')
		return false
	}
	
	else if(!emailCheck(form.email.value)) return false
	submitFlag = true
	return true
  }

  function emailCheck (emailStr)
  {
	emailPat=/^(.+)@(.+)$/
	specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	validChars="\[^\\s" + specialChars + "\]"
	quotedUser="(\"[^\"]*\")"
	ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	atom=validChars + '+'
	word="(" + atom + "|" + quotedUser + ")"
	userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	matchArray=emailStr.match(emailPat)
	if(matchArray==null)
	{
		alert("Invalid e-mail address!")
		return false
	}
	user=matchArray[1]
	domain=matchArray[2]
	if(user.match(userPat)==null)
	{
		alert("Invalid username!")
		return false
	}
	IPArray=domain.match(ipDomainPat)
	if(IPArray!=null) {
		for (var i=1;i<=4;i++) {
        		if (IPArray[i]>255) {
				alert("Invalid IP address!")
				return false
			}
		}
		return true
	}
	domainArray=domain.match(domainPat)
	if(domainArray==null)
	{
		alert("Invalid domain name!")
		return false
	}
	atomPat=new RegExp(atom,"g")
	domArr=domain.match(atomPat)
	len=domArr.length
	if (domArr[domArr.length-1].length<2 || 
		domArr[domArr.length-1].length>3) {
		alert("The address must end in a three-letter domain, or two letter country.")
		return false
	}
	if(len<2)
	{
		var errStr="This address is missing a hostname!"
		alert(errStr)
		return false
	}
	return true;
  }
  function checkChoice(whichbox)
  {
	with(whichbox.form)
	{
		if(whichbox.checked==true)
		{
			document.feedback.moreinfo.value = "Yes"
		}
		else
		{
			document.feedback.moreinfo.value = "No"
		}

	}
  }

/* 			OLD STUFF FROM MUSEUM			*/

function MM_swapImgRestore() { //v3.0
// return;
  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
// return;
  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_findObj(n, d) { //v3.0
// return;
  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
// return;
  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];}
}