function checkContactForm(){
	var msg = "";
	var fields = new Array("first_name", "last_name", "business", "email_address", "phone_number", "enquiry");
	var rep = RegExp('_','gi');
	for(i=0; i < fields.length; i++){
		if(eval("document.contactform." + fields[i] + ".value") == ""){
			msg += " - Please enter your " + fields[i].replace(rep, ' ') + "\n";
		}
	}
	msg += checkEmail(document.contactform.email_address.value, "");
	msg += checkPhone(document.contactform.phone_number.value, "Phone number");

	if (msg != ""){
		msg = "Please fill in the following required fields:\n" + msg;
		alert(msg);
		return false;
	}
	return true;	
}

function checkEmail(email, fieldname){
	if(email){
		var regex = RegExp(/^([a-zA-Z0-9_\-\.]{2,})@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/);
		if ((email.search(regex) == -1) && (email != "")){
			if ((fieldname == "undefined") || (fieldname == "")){
				return " - Email address incorrect format\n";
			}else{
				return " - " + fieldname + " incorrect format\n";			
			}
		}
	}
	return "";
}

function checkPhone(phone, fieldname){
	if(phone){
		phone = phone.replace(/\(/gi, "");
		phone = phone.replace(/\)/gi, "");
		phone = phone.replace(/ /gi, "");
		regex = RegExp(/(^0[1-9]{1}[0-9]{8}$)|(^13\d{4}$)|(^04\d{2,3}\d{6}$)/);
		if ((phone.search(regex) == -1) && (phone != "")){
			return " - " + fieldname + " incorrect format - please include the area code \n";;
		}
	}
	return "";
}


function checkNumField(evt){
	var chCode = (evt.which)?evt.which:evt.keyCode;
	if (typeof document.getElementById!="undefined" && typeof document.all=="undefined"){
		if ((34<evt.charCode && evt.charCode<41) || evt.charCode==46) return false;
		if ((34<chCode && chCode<41) || chCode==46) return true;
	}
	if((chCode<48 || 57<chCode) && chCode>31) return false;
	return true;
}

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];}
}