// JavaScript Document
<!--
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 checkZipCode() {

  var num = new Array();
  var p = /(\d{5})/;
  num = document.form1.zipCode.value.match(p);	// of non-digit characters
  if (num != null) 
   {

	}
  else 
   { 
    alert("Please enter a valid 5 digit zip code.")	
	return false;
   }
    var strProduct = document.form1.product.selectedIndex;
	var strZipCode = document.form1.zipCode.value;
	if (strProduct == 0) {
	  alert("Please select a product.");
	  return false;
	}
	else if (strZipCode == "") {
	  alert("Please enter a zip code.");
	  document.form1.zipCode.focus();
	  return false;
	}	
	else {
	  return true;
	}	
  }
//-->