// JavaScript functions for MisterPackaging.com
var isEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-]+)+/;
var isZipCode = /\d{5}(-\d{4})?/;
var isPhone = /^\D*\d{3}\D*\d{3}\D*\d{4}/;

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 validate(form) {
	if (navigator.userAgent.indexOf("Mozilla/4")==0) {
		if (form["fname"].value == "") {
			alert("You must enter your first name.");
			form["fname"].focus();
			return false;
			}
		if (form["lname"].value == "") {
			alert("You must enter your last name.");
			form["lname"].focus();
			return false;
			}
		if (form["city"].value == "") {
			alert("You must enter your last name.");
			form["city"].focus();
			return false;
			}
		if (form["state"].value == "") {
			alert("You must enter your state.");
			form["state"].focus();
			return false;
			}
		if (!(isPhone.test(form["phone"].value))) {
			alert("Please enter a valid phone number.");
			form["phone"].focus();
			return false;
			}
		if (form["fax"].value != "") {
			if (!(isPhone.test(form["fax"].value))) {
				alert("Please enter a valid fax number.");
				form["fax"].focus();
				return false;
				}
			}
		if (!(isZipCode.test(form["zip"].value))) {
			alert("You must enter your Zip Code.");
			form["zip"].focus();
			return false;
			}
		if (!(isEmail.test(form["email"].value))) {
			alert("You must enter your e-mail address.");
			form["email"].focus();
			return false;
			}
		}
	return true;
}