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_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_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 validatenameemail(form)
{
	if (form.firstname.value=='')
	{
		alert("Please enter your first name");
		form.firstname.focus();
		return(false);
	}
	else if (form.surname.value=='')
	{
		alert("Please enter your surname");
		form.surname.focus();
		return(false);
	}
	else if(form.email.value=='')
	{
		alert("Please Specify Email Address!");
		form.email.focus();
		return(false);
	}
	else if (!emailCheck (form.email.value) )
	{
		form.email.focus();
		return (false);
	}
	else
	{
		return(true);
	}
}

function emailCheck (emailStr)
{
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null)
	{
		alert("Please verify Email Address (check @ and .'s)");
		document.form_sub.sbemail_id.select();
		document.form_sub.sbemail_id.focus();
		return(false);
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	if (user.match(userPat)==null)
	{
    	alert("Please Specify a valid username in Email Address!");
    	return(false);
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null)
	{
    // this is an IP address
	  	for (var i=1;i<=4;i++)
		{
	    	if (IPArray[i]>255)
			{
	        	alert("Destination IP address is invalid!");
				return(false);
	    	}
    	}
    	return(true);
	}
	var domainArray=domain.match(domainPat);
	if (domainArray==null)
	{
		alert("Please Specify a valid domain name!");
    	return(false);
	}
	var atomPat=new RegExp(atom,"g");
	var domArr=domain.match(atomPat);
	var len=domArr.length;
	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>4)
	{
   		alert("The address must end in a valid domain, or two letter country.");
   		return(false);
	}
	if (len<2)
	{
   		var errStr="This address is missing a hostname!";
   		alert(errStr);
   		return(false);
	}
	return true;
}