/* basic mouseover code */
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 cantSaveCart()
{
	var msg = 'Your shopping cart is empty.';
	alert(msg);	
}

function cantCheckOut()
{
	var msg = 'Your shopping cart is empty.';
	alert(msg);
}

function confirmUserDelete()
{
	var msg = 'Are sure you want to delete this user?';
	return confirm(msg);	
}

function confirmSavedOrderDelete()
{
	var msg = 'Are sure you want to delete this saved order?';
	return confirm(msg);
}


function loadSubCategories(selectbox, id)
{
	if (selectbox.value == '')
	{		
		document.getElementById(id).innerHTML = '';
		obj = getTR(id);					
		obj.className = 'hide';
		
		if (id == 'subcategorydiv')
		{
			id = 'subcategory2div';
			document.getElementById(id).innerHTML = '';
			obj = getTR(id);					
			obj.className = 'hide';
		}
		
		return;
	}
	
	var obj = getTR(id);
	obj.className = '';
	document.getElementById(id).innerHTML = 'Loading...';
	
	try {
		var cat = document.getElementById('category').value;
	}
	catch (err) {var cat = 0;};
	
	try {
		var subcat = document.getElementById('subcategory').value;
	}
	catch (err) {var subcat = 0;};
	
	XMLRequest.GET('search.php?getSubcategories=' + cat + '&getSubcategories2='+ subcat, '', function (val) {
					
					var obj = document.getElementById(id);
					obj.innerHTML = val.responseText;
					
					if (val.responseText.length == 0)
					{
						var theTR = getTR(id);
						theTR.className = 'hide';
						
						if (id == 'subcategorydiv')
						{
							theTR = getTR('subcategory2div');
							theTR.className = 'hide';
							document.getElementById('subcategory2div').innerHTML = '';
						}
					}
					
		}, function (){ /*alert('error');*/ } );
}

function getTR(obj)
{
	if (String(typeof(obj)).toLowerCase() != 'object' )
		obj = document.getElementById(obj);
	
	while( String(obj.tagName).toLowerCase() != 'tr' )
	{
		obj = obj.parentNode;
	}
	
	return obj;
}

function validateRegistrationPage()
{
	var fields = ['UserName', 'FirstName', 'LastName', 'Company', 'Address', 'City', 'State', 'Zip', 'PhoneNo', 'FaxNo'];
	var errorFound = false;
	for (var x=0; x < fields.length; x++)
	{
		var field = document.getElementById(fields[x]);
		field.className = field.className.replace(/[ ]?formError/g, '');
		if (field.value.length == 0)
		{
			field.className += ' formError';
			errorFound = true;
		}
	}
	
	var pass = document.getElementById('Password');
	pass.className = pass.className.replace(/[ ]?formError/g, '');

	var repass = document.getElementById('RePassword');
	repass.className = repass.className.replace(/[ ]?formError/g, '');

	if (pass.value.length == 0)
	{
		pass.className += ' formError';
		errorFound = true;
	}
	
	var err = document.getElementById('lblErr');
	err.innerHTML = '';
	
	if (pass.value != repass.value)
	{
		pass.className += ' formError';	
		repass.className += ' formError';	
		errorFound = true;
		err.innerHTML = 'Passwords do not match';		
	}
	
	var email = document.getElementById('Email');
	email.className = email.className.replace(/[ ]?formError/g, '');
	if (email.value.match(/[^@]+[@][^.]+\.[^.]+/) == null)
	{
		email.className += ' formError';	
		errorFound = true;
	}
	
	return !errorFound;
}



function showPreview(img, obj)
{
	hidePreview();

	if (img == '')
		return;
	
	document.getElementById('previewImg').src = '/images/products/' + img;
	
	if (obj != null)
	{
		var origObj = obj;
		
		var offsetX = 0;
		var offsetY = 0;
		do
		{
			offsetX += obj.offsetLeft;
			offsetY += obj.offsetTop;
		}
		while (obj = obj.offsetParent);
		
		// offsetY = the abs style['top'] location of the td, in px
		// image height = 200px + 1px border
		// origObj.parentNode.offsetHeight = height of the td
		document.getElementById('previewImg').style['top'] = (offsetY - 201 + origObj.parentNode.offsetHeight) + 'px';
		document.getElementById('previewImg').style['left'] = (offsetX + 35) + 'px';
	}
}
function hidePreview()
{
	with (	document.getElementById('previewImg')	)
	{
		style['left'] = '-1000px';
		style['top'] = '0px';
		src = '/images/spacer.gif';
	}
}
function highlightRow(obj)
{
	unhighlightRow(obj);
	obj.className += ' highlight';
}
function unhighlightRow(obj)
{
	obj.className = obj.className.replace(/[ ]?highlight/, '');
}


function recalcPrice(amt, tdnum)
{
	var mult = document.getElementById('mult_' + tdnum);
	if (mult == null)
		mult=1;
	else
	{
		mult = Number(mult.value);
	
		var td = document.getElementById('priceTD_' + tdnum);
		td.innerHTML = '$' + formatMoney(amt * mult);
	}

	var totalTD = document.getElementById('totalTD_' + tdnum);
	/*
	var quantInput = document.getElementById('quant_' + tdnum);
	var quant = quantInput.value.replace(/[^0-9]/g, '');
	if (quant != quantInput.value)
		quantInput.value = quant;
	*/
	
	var quant = cleanQty( document.getElementById('quant_' + tdnum) );
	
	var oldLineTotal = totalTD.innerHTML.replace(/[^0-9.]/g, '');
	var newLineTotal = (Math.round(amt * mult * 100)/100) * quant;
	
	totalTD.innerHTML = '$' + formatMoney( newLineTotal );
	
	newLineTotal = String(newLineTotal).replace(/[^0-9.]/g, '');
	
	
	var diff = Number(newLineTotal) - Number(oldLineTotal);
	var preciseTotalTD = document.getElementById('preciseTotal');
	var preciseTotal = preciseTotalTD.innerHTML.replace(/[^0-9.]/g, '');
	var grandTotalTD = document.getElementById('grandTotal');
	var grandTotal = grandTotalTD.innerHTML.replace(/[^0-9.]/g, '');
	var minFeeTD = document.getElementById('minFee');
	var minFee = minFeeTD.innerHTML.replace(/[^0-9.]/g, '');
	var adjGrandTotal = Number(preciseTotal) - Number(minFee) + Number(diff);
	var newMinFee = 0;
	if (Number(adjGrandTotal) < 500)
		newMinFee = 25;
	preciseTotalTD.innerHTML = formatMoney( Number(adjGrandTotal) + Number(newMinFee) );
	grandTotalTD.innerHTML = '$' + formatMoney( Math.round(Number(adjGrandTotal) + Number(newMinFee)) );
	minFeeTD.innerHTML = '$' + formatMoney( Number(newMinFee) );	
	

	startCartUpdateRequestTimer();
}

function cleanQty(inputObj)
{
	var quant = inputObj.value.replace(/[^0-9]/g, '').replace(/^([0-9]{1,5}).*$/g, '$1');
	if (quant != inputObj.value)
		inputObj.value = quant;
	
	return quant;
}

window.cartUpdateRequestTimer = 0;
function startCartUpdateRequestTimer()
{
	clearTimeout(window.cartUpdateRequestTimer);
	setTimeout('sendCartUpdateRequest()', 1000);
}

function sendCartUpdateRequest()
{
	clearTimeout(window.cartUpdateRequestTimer);
	
	var request = [];
	var theform = document.getElementById('cartform');
	
	for (var x=0; x < theform.elements.length; x++)
	{
		request[theform.elements[x].name] = theform.elements[x].value;
	}
	request['ajax'] = 'T';

	XMLRequest.POST( theform.action, '', request, function() {}, function() {} );
}

function formatMoney(price)
{
	price = Math.round(price * 100) / 100;
	// just in case there are any floating point issues...
	price = String(price).replace(/(\.[0-9]{2}).*/, '$1');
	price = price.replace(/(\.[0-9]{1})$/, '$1' + '0');
	if (price.indexOf('.') == -1)
		price += '.00';

	price = price.replace(/([0-9]{3}[.])+/, ',$1');
	price = price.replace(/([0-9]{3}[,])+/g, ',$1');
	price = price.replace(/^,/, '');
	return price;
}


function validateOptionForm(formObj)
{
	if (formObj.className.search(/tagcfmsp/i) == -1)
		return true;
	
	document.getElementById('tagcfmspError').className = 'hide';
	
	var fields = ['tag', 'cfm', 'staticpressure'];
	var isValid = true;
	for (var x=0; x < fields.length; x++)
	{
		var field = document.getElementById(fields[x]);
		field.className = field.className.replace(/formError/, '');
		field.value = field.value.replace(/^[ ]+/,'').replace(/[ ]+$/,'');	
		if (field.value.length == 0)
		{
			field.className += ' formError';
			isValid = false;
			document.getElementById('tagcfmspError').className = 'errorMsg';
		}
	}
	
	return isValid;
}



/* XMLRequest Object is C&P from http://www.bytemycode.com/snippets/snippet/526/ */
var XMLRequest=Object();
XMLRequest.buildQuery = function (query) {
        var data="";
        var first="?";
        for (i in query) {
                data+=first+escape(i)+"="+escape(query[i]);
                first="&";
        }
        return data;
}
XMLRequest.GET = function (url, query, callback, fallback) {
        var xmlhttp=null;
        if (window.XMLHttpRequest) {
                xmlhttp=new XMLHttpRequest()
        } else if (window.ActiveXObject) {
                xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
        }
        if (xmlhttp!=null) {
                xmlhttp.onreadystatechange=function () {
                        if (xmlhttp.readyState==4) {
                                if (xmlhttp.status==200) callback(xmlhttp);
                                else fallback(xmlhttp);
                        }
                }
                var data = XMLRequest.buildQuery(query);
                xmlhttp.open("GET",url+data,true);
                xmlhttp.send("");
        }else{
                alert("Your browser does not support XMLHTTP.")
        }
}
XMLRequest.POST = function (url, query, form, callback, fallback) {
        var xmlhttp=null;
        if (window.XMLHttpRequest) {
                xmlhttp=new XMLHttpRequest()
        } else if (window.ActiveXObject) {
                xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
        }
        if (xmlhttp!=null) {
                xmlhttp.onreadystatechange=function () {
                        if (xmlhttp.readyState==4) {
                                if (xmlhttp.status==200) {
                                        callback(xmlhttp);
                                } else {
                                        fallback(xmlhttp);
                                }
                                       
                        }
                }
                var urldata = XMLRequest.buildQuery(query);
                var postdata = XMLRequest.buildQuery(form).substr(1);
                xmlhttp.open("POST",url+urldata,true);
                xmlhttp.setRequestHeader("Content-type" , "application/x-www-form-urlencoded");
                xmlhttp.setRequestHeader("Content-length", postdata.length);
                xmlhttp.setRequestHeader("Connection", "close");
                xmlhttp.send(postdata);
        }else{
                alert("Your browser does not support XMLHTTP.")
        }
}