function swapImage(oldImage, newImage) { 
	var oldImage = document.getElementById(oldImage).src = location.protocol + '//www.johnmuratori.com/images/'+newImage;
}
function printPrep() {
	
	var remove_el=document.all.remove
	if (remove_el!=''&&remove_el.length==null)
	remove_el.style.display='none'
	else{
	for (i=0;i<remove_el.length;i++)
	remove_el[i].style.display='none'
	}

	var width_el=document.all.widthchange
	if (width_el!=''&&width_el.length==null)
	width_el.style.width='650px'
	else{
	for (i=0;i<width_el.length;i++)
	width_el[i].style.width='650px'
	}
	

}

function screenPrep() {
	setTimeout("window.location.reload()",50)
}

function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Please enter a valid email address.")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Please enter a valid email address.")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Please enter a valid email address.")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Please enter a valid email address.")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Please enter a valid email addresss.")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Please enter a valid email address.")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Please enter a valid email address.")
		    return false
		 }

 		 return true					
	}

function SubscribeValidate(){
	var emailID=document.email_form.email_address;
	
	if ((emailID.value==null)||(emailID.value=="")||(emailID.value=="Enter Email Address")){
		alert("Please enter your email address.");
		emailID.focus();
		return false;
	}
	if (echeck(emailID.value)==false){
		emailID.value="";
		emailID.focus();
		return false;
	}
	return true;
 }
 
function SearchValidate(){
	var searchID=document.productsearchform.posted_data_hidden;
	
	if ((searchID.value==null)||(searchID.value=="")){
		alert("Please enter a search keyword or item #.");
		//searchID.focus();
		return false;
	}
	return true;
 }
 
 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];}
}



				//x-cart stuff...
				//
				// Enviroment identificator
				//
				var localIsDOM = document.getElementById?true:false;
				var localIsJava = navigator.javaEnabled();
				var localIsStrict = document.compatMode=='CSS1Compat';
				var localPlatform = navigator.platform;
				var localVersion = "0";
				var localBrowser = "";
				if(window.opera && localIsDOM) {
					localBrowser = "Opera";
					if(navigator.userAgent.search(/^.*Opera.([\d.]+).*$/) != -1)
						localVersion = navigator.userAgent.replace(/^.*Opera.([\d.]+).*$/, "$1");
					else if(window.print)
						localVersion = "6";
					else
						localVersion = "5";
				} else if(document.all && document.all.item)
					localBrowser = 'MSIE';
				if(navigator.appName=="Netscape") {
					if(!localIsDOM) {
						localBrowser = 'Netscape';
						localVersion = navigator.userAgent.replace(/^.*Mozilla.([\d.]+).*$/, "$1");
						if(localVersion != '')
							localVersion = "4";
					} else if(navigator.userAgent.indexOf("Safari") >= 0)
						localBrowser = 'Safari';
					else if(navigator.userAgent.indexOf("Netscape") >= 0)
						localBrowser = 'Netscape';
					else if(navigator.userAgent.indexOf("Firefox") >= 0)
						localBrowser = 'Firefox';
					else 
						localBrowser = 'Mozilla';
					
				}
				if(navigator.userAgent.indexOf("MSMSGS") >= 0)
					localBrowser = "WMessenger";
				else if(navigator.userAgent.indexOf("e2dk") >= 0)
					localBrowser = "Edonkey";
				else if(navigator.userAgent.indexOf("Gnutella") + navigator.userAgent.indexOf("Gnucleus") >= 0)
					localBrowser = "Gnutella";
				else if(navigator.userAgent.indexOf("KazaaClient") >= 0)
					localBrowser = "Kazaa";
				
				if(localVersion == '0' && localBrowser != '') {
					var rg = new RegExp("^.*"+localBrowser+".([\\d.]+).*$");
					localVersion = navigator.userAgent.replace(rg, "$1");
				}
				var localIsCookie = ((localBrowser == 'Netscape' && localVersion == '4')?(document.cookie != ''):navigator.cookieEnabled);
				
				//
				// Opener/Closer HTML block
				//
				function visibleBox(id,skipOpenClose) {
					elm1 = document.getElementById("open"+id);
					elm2 = document.getElementById("close"+id);
					elm3 = document.getElementById("box"+id);
				
					if(!elm3)
						return false;
				
					if (skipOpenClose) {
						elm3.style.display = (elm3.style.display == "")?"none":"";
					} else if(elm1) {
						if (elm1.style.display == "") {
							elm1.style.display = "none";
							if(elm2)
								elm2.style.display = "";
							elm3.style.display = "none";
						} else {
							elm1.style.display = "";
							if(elm2)
								elm2.style.display = "none";
							elm3.style.display = "";
						}
					}
				}
				
				//
				// URL encode
				//
				function urlEncode(url) {
					return url.replace(/\s/g, "+").replace(/&/, "&amp;").replace(/"/, "&quot;")
				}
				
				//
				// Substitute
				//
				function substitute(lbl) {
				var x, rg;
					for(x = 1; x < arguments.length; x+=2) {
						if(arguments[x] && arguments[x+1]) {
							rg = new RegExp("\\{\\{"+arguments[x]+"\\}\\}", "gi");
							lbl = lbl.replace(rg,  arguments[x+1]);
							rg = new RegExp('~~'+arguments[x]+'~~', "gi");
							lbl = lbl.replace(rg,  arguments[x+1]);
						}
					}
					return lbl;
				}