if( document.getElementById("nav") ) {
sfHover = function() {
	
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);
}

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


// Remove invalid form input characters on keyup
function checkInt(val,limit) {
	var strPass = val.value;
	var strLength = strPass.length;
	var badchar = false;
	
	for ( i = 0; i < strLength; i++ ) {
		  var lchar = val.value.charAt(i);
		  if(isNaN(parseInt(lchar))) {
		     badchar = true;
		  }
	}

	if(badchar) {
		var newStr = '';
		for ( i = 0; i < strLength; i++ ) {
			  var lchar = val.value.charAt(i);
			  if( !isNaN(parseInt(lchar))) {
			  	newStr += lchar;
			  }
		}
		val.value = newStr;
	}
	
}

function checkInventory(val,limit) {
	if( !isNaN(parseInt(val.value)) && parseInt(val.value) > limit ) {
		alert('Only '+limit+' of this item are available');
		val.value = limit;
	}
}

function fixInt(val,defaultval) {
	if(isNaN(parseInt(val.value))) {
	   val.value = defaultval;
	}
}

function validateQuantity(form) {
	if(isNaN(parseInt(form.qty.value))) {
	   alert('Please enter a valid quantity');
	   form.qty.focus();
	   return false;
	}
	return true;
}

function isEmail(s){
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(s)){
		return true;
	}
	else {
		return false;
	}
}

function validateNewsletterForm(form){
		if( isEmail(form.email.value) == false || form.email.value==''){
			alert("Please enter a valid email address");
			form.email.focus();
			return false;
		}
	return true;
}

function productViewer(id,view) {
	var theURL = "/store/site/product_viewer.cfm?id="+id+"&view="+view;
	window.open(theURL,'productviewer','resizable=yes,width=480,height=650');
}

function productViewerAdditionalView(id,view,pg) {
	var theURL = "/store/site/product_viewer.cfm?id="+id+"&view="+view+"&pg="+pg;
	window.open(theURL,'productviewer','resizable=yes,width=480,height=650');
}

function notifyMeWhenAvailable(sku) {
	var theURL = "/store/site/notify_when_available.cfm?sku="+sku;
	window.open(theURL,'notifyme','resizable=yes,width=500,height=350');
}

function emailToFriend(productid) {
	var theURL = "/store/site/emailfriend.cfm?id="+productid;
	window.open(theURL,'emailfriend','resizable=yes,width=650,height=500');
}

function shippingPolicy() {
	var theURL = "/store/site/shipingrates.cfm";
	window.open(theURL,'shipping','resizable=yes,scrollbars=yes,width=650,height=650');
}

function returnPolicy() {
	var theURL = "/popups/returnpolicy.cfm";
	window.open(theURL,'returnpolicy','resizable=yes,scrollbars=yes,width=600,height=600');
}

function privacyPolicy() {
	var theURL = "/popups/privacypolicy.cfm";
	window.open(theURL,'privacypolicy','resizable=yes,scrollbars=yes,width=600,height=600');
}

function giftwrap() {
	var theURL = "/customerservice/giftwrap.cfm";
	window.open(theURL,'giftwrap','resizable=yes,width=415,height=440');
}

function searchtips() {
	var theURL = "/customerservice/searchtips_popup.cfm";
	window.open(theURL,'searchtips','scrollbars=yes,resizable=yes,width=600,height=580');
}

function checkoutFeaturedProduct(productid) {
	var theURL = "/store/site/checkout_featured_popup.cfm?id="+productid;
	window.open(theURL,'featured','scrollbars=yes,resizable=yes,width=580,height=450');
}

function productSort(targeturl,sortbyoption) {
	var sortby = sortbyoption.options[sortbyoption.selectedIndex].value;
	location = targeturl+"&sort="+sortby;
}

function treesLearnMore() {
	var theURL = "/popups/trees_learnmore.cfm";
	window.open(theURL,'trees','scrollbars=yes,resizable=yes,width=600,height=580');
}

function treesEverestLearnMore() {
	var theURL = "/popups/trees_everest_learnmore.cfm";
	window.open(theURL,'trees','scrollbars=yes,resizable=yes,width=600,height=580');
}

function checkForPOBox(str) {
    var thestr = str.toLowerCase();
	if( thestr.indexOf('po box') != -1 || thestr.indexOf('p.o. box') != -1 ) {
	    return 1;
	}
	else {
		return 0;
	}
}