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 MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function fullscreen( pageUrl, winName ) {
  window.open( pageUrl, winName, "fullscreen=yes" );
}

function centerWindow(pageUrl, winName, w, h, scroll) {
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	winProps = 'height='+ h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable';
	win = window.open(pageUrl, winName, winProps);
	if (parseInt(navigator.appVersion) >= 4) {
		 win.window.focus();
	}
}

function MM_displayStatusMsg(msgStr) { //v1.0
	status=msgStr;
	document.MM_returnValue = true;
}

function updateImage(theField, theDefaultImg){
	imgName=theField.name;
	imgSource=theField.value;
	imgDefault=theDefaultImg;
	if (imgSource.length > 5) MM_swapImage(imgName,'',imgSource,1)
	else {MM_swapImage(imgName,'',imgDefault,1); theField.value="";}
}

function checkpartnumber(theField) {
// Function to check the part number format
	var valid = "0123456789qazwsxedcrfvtgbyhnujmikolpQAZWSXEDCRFVTGBYHNUJMIKOLP(_-)";
	var isValid = true;	var temp;
	for (var i=0; i<theField.value.length; i++) {
		temp = "" + theField.value.substring(i, i+1);
		if (valid.indexOf(temp) == "-1") isValid = false;
	}
	if (!isValid) {
		alert("Please enter a valid Part Number, only number, letters, hyphens (-) and underscore (_) are allowed.");
		theField.focus();
		theField.select();
		return (false);
	}
	return (true);
}