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_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_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 setnav(n){
	var elementId = 'n'+n;
	document.getElementById(elementId).style.backgroundPosition = '-80px 0';
}

function checkform(){
	var errorcode = new Array();
	if(document.enquiries.formname.value==""){ errorcode[errorcode.length]="Name"; } else { errorcode[errorcode.length]=""; }
	if(document.enquiries.formemail.value==""){ errorcode[errorcode.length]="Email"; } else { errorcode[errorcode.length]=""; }
	if(document.enquiries.formphone.value==""){ errorcode[errorcode.length]="Phone"; } else { errorcode[errorcode.length]=""; }
	//Build the error message based on the feedback from the above
	//alert(errorcode.length);
	var errortext = ""
	for(i=0; i<errorcode.length; i++){
		if(errorcode[i]==""){
			errortext=errortext;
		}else{
			if(errortext==""){
				errortext= errortext + errorcode[i];
			}else{
				errortext = errortext +", "+ errorcode[i];
			}
		}
	}
	//if there are any errors
	if(errortext!=""){
		alert("Please fill in the following required fields: "+errortext);
	}else{
		document.enquiries.submit();
	}
}