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);

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_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function CheckDataNews() {
	if (document.addnewsletterform.addnewsletter.value.length <= 0) {
		alert ("Please enter an Email address.");
		document.addnewsletterform.addnewsletter.focus();
		return false;
	}

	var x = document.addnewsletterform.addnewsletter.value;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!filter.test(x)) {
		alert("Please enter a valid email address");
		document.addnewsletterform.addnewsletter.focus();
		return false;
	}
}
//from index.php
function MM_jumpMenuGo(objId,targ,restore){ //v9.0
  var selObj = null;  with (document) {
  if (getElementById) selObj = getElementById(objId);
  if (selObj) eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0; }
}
// used by customdesign.php
function checkForm() {		
	if (document.forms.contact_form.elements['name'].value.length == 0) {
		alert('Please enter a value for the "Name" field');
        	return false;
    	}
	if (document.forms.contact_form.elements['email'].value.length == 0) {
		alert('Please enter a value for the "Email" field');
        	return false;
    	}
    validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
    strEmail = document.forms.contact_form.elements['email'].value;
   // search email text for regular exp matches
    if (strEmail.search(validRegExp) == -1) 
   {
      alert('A valid e-mail address is required.\nPlease amend and retry');
      return false;
    } 		
	if (document.forms.contact_form.elements['desc'].value.length == 0) {
		alert('Please enter a value for the "Project Description" field');
        	return false;
    }
	if (document.forms.contact_form.elements['country'].value.length == 0) {
		alert('Please enter a value for the "Country" field');
        	return false;
    }	 
        return true;
}

//used by checkout forms
function CheckData() {
	if (document.formreg.CustomerEmail.value.length <= 0) {
		alert ("Please enter an Email address.");
		document.formreg.CustomerEmail.focus();
		return false;
	}

	var x = document.formreg.CustomerEmail.value;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!filter.test(x)) {
		alert("Please enter a valid email address");
		document.formreg.CustomerEmail.focus();
		return false;
	}

	if (document.formreg.DeliveryAddress.value.length <= 0) {
		alert ("Please enter a Delivery Address.");
		document.formreg.DeliveryAddress.focus();
		return false;
	}

	if (document.formreg.DeliveryPostCode.value.length <= 0) {
		alert ("Please enter a Delivery Postcode.");
		document.formreg.DeliveryPostCode.focus();
		return false;
	}

	if (document.formreg.BillingAddress.value.length <= 0) {
		alert ("Please enter a Billing Address.");
		document.formreg.BillingAddress.focus();
		return false;
	}

	if (document.formreg.BillingPostCode.value.length <= 0) {
		alert ("Please enter a Billing Postcode.");
		document.formreg.BillingPostCode.focus();
		return false;
	}

}