var newwindow = '';
function popup(url,name,stuff) {
	if (!newwindow.closed && newwindow.location) {
		newwindow.location.href = url;
		// we need to resize the window to our new image
		var argz = stuff.split(",");
		var w = argz[0];
		var h = argz[1];
		newwindow.resizeTo(w.substring((w.indexOf("=")+1)),h.substring((h.indexOf("=")+1)));
	}
	else {
		newwindow=window.open(url,name,stuff);
		if (!newwindow.opener) newwindow.opener = self;
	}
	if (window.focus) {newwindow.focus()}
	return false;  
}

function warnShipping(theForm) {
	var eForm = theForm.form;
	var changeMe = new Array();
	var shipstr = "Due to increasing amounts of Credit Card Fraud, we will now only ship to a shipping address if one of the following is true:\n\n";
	var shipstr = shipstr + "- Your Shipping address is on file with the credit card company and will pass an AVS check\n";
	var shipstr = shipstr + "- You have done business with us before where we've successfully shipped to a Billing address\n";
	var shipstr = shipstr + "\n\nWe regret that we've had to resort to these strict rules, however it has become necessary.";
	var shipstr = shipstr + " Please call if you would like to discuss shipment options.";
	
	changeMe[0] = 'ship_st1';
	changeMe[1] = 'ship_st2';
	changeMe[2] = 'ship_city';
	changeMe[3] = 'ship_state';
	changeMe[4] = 'ship_zip';
	changeMe[5] = 'ship_country';
	changeMe[6] = 'ship_phone';
	changeMe[7] = 'ship_name';
	
	var pointer = changeMe[0];	// use this to get state of form
	var state = eForm.elements[pointer].disabled;
	if(state) {
		var newState = false;
	} else {
		var newState = true;
	}
	if(!newState) {	// we're activating the form elements, show the confirm.
		var agree=confirm(shipstr);
	} else {	// deactivating, they know..
		var agree = true;
	}
	if(agree) {					
		for(var i=0;i<8;i++) {
			var theEl = changeMe[i];
			eForm.elements[theEl].disabled = newState;
		}
	} else {
		var chk = 'shipToBill';
		eForm.elements[chk].checked = true;
	}
}

function passChange(theForm) {
	var eForm = theForm.form;
	var changeMe = new Array();
	var str = "Password fields are now active. When you click save, your login password will be changed.";
	
	changeMe[0] = 'pass1';
	changeMe[1] = 'pass2';
	
	var pointer = changeMe[0];	// use this to get state of form
	var state = eForm.elements[pointer].disabled;
	if(state) {
		var newState = false;
	} else {
		var newState = true;
	}
	if(!newState) {	// we're activating the form elements, show the confirm.
		var agree=confirm(str);
	} else {	// deactivating, they know..
		var agree = true;
	}
	if(agree) {					
		for(var i=0;i<6;i++) {
			var theEl = changeMe[i];
			eForm.elements[theEl].disabled = newState;
		}
	} else {
		var chk = 'shipToBill';
		eForm.elements[chk].checked = true;
	}
}

// Email Validation. doc javascript rules
// haxx0red by jay@hmsmotorsport.com

function validEmail(str) {
  if (window.RegExp) {
    var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
    var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$";
    var reg1 = new RegExp(reg1str);
    var reg2 = new RegExp(reg2str);
    if (!reg1.test(str) && reg2.test(str)) {
      return true;
    } else {
	    return false;
	 }
  } else {
    if(str.indexOf("@") >= 0) {
      return true;
    } else {
    	return false;
    }
  }
}

function isEmail (s)	{       
    // there must be >= 1 character before @, so we
    // start looking at character position 1 
    // (i.e. second character)
    var i = 1;
    var sLength = s.length;

    // look for @
    while ((i < sLength) && (s.charAt(i) != "@"))
    { i++
    }

    if ((i >= sLength) || (s.charAt(i) != "@")) return false;
    else i += 2;

    // look for .
    while ((i < sLength) && (s.charAt(i) != "."))
    { i++
    }

    // there must be at least one character after the .
    if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
    else return true;
}

function trim(str) {	// i can't believe js doesn't have a trim() function.  i prolly just can't find it.
	while(''+str.charAt(0)==' ') {	// take em off the front
		str=str.substring(1,str.length);
	}
	while(''+str.charAt(str.length-1)==' ') {	// and the backside.
		str=str.substring(0,str.length-1);
	}
	return str;
}

function checkme(e) {
	e.checked = true;
}

function techDisclaimer() {
	var string = "HMS Provides the tech tip service to their customers with no warranty as to their validity and/or truth.  ";
	string += "By posting a Tech Tip here, you are providing the community with information and it is your responsibility to be sure ";
	string += "that this information is legitimate.\n\n";
	
	string += "Every post will be reviewed and approved at the discretion of HMS.  We aim to approve almost all posts as we feel that ";
	string += "variety of opinion is a good thing.  However we will edit and reject posts that are blatantly false and or contain misleading ";
	string += "information.";
	
	var state = confirm(string);
	return state;
}

function youAreNotLoggedIn() {
	var string = "You are trying to use a function that is only available to registered members.\n\n";
	string += "Registration takes about 2 minutes and is very easy. For Information on our ";
	string += "privacy policy please visit our privacy statement on the information page of our website.";
	string += "\n\nTo be redirected to the signup area, select OK.  If you want to continue shopping, click CANCEL";
	
	var state = confirm(string);
	if(state) {
		window.location.href = "/myhms.php?page=profile";
	} else {
		// do nothing;
	}
}

function checkMultiEmail(erp) {
	var field = "addresses";
	var str = erp.elements[field].value;
	addys = str.split(",");
	var errorString = "";
	for(var i=0;i<addys.length;i++) {
		var clean = trim(addys[i]);
		if(isEmail(clean)) {
			// do nothing... this is a valid email addy.
			//alert('all email things are good');
		} else {
			var errors = true;
			errorString = errorString + clean + " is not a valid email address\n";
		}
	}
	if(errors) {
		errorString = "You have errors in your addresses field:\n\n" + errorString;
		alert(errorString);
		return false;
	}
}

function prettyErrors(element) {
	if(element == "email_addr") {
		return "We need a valid email address.";
	} else if(element == "first_name") {
		return "We need to know your first name.";
	} else if(element == "last_name") {
		return "We need to know your last name.";
	} else if(element == "vehicleinfo") {
		return "Please Tell us what kind of vehicle you have.";
	} else if(element == "username") {
		return "You Must select a Username";
	} else if(element == "pass1") {
		return "You Must Choose a password";
	} else if(element == "pass2") {
		return "You Must Validate your password";
	} else if(element == "bill_st1") {
		return "We must know your address";
	} else if(element == "bill_city") {
		return "We need to know what city you live in.";
	} else if(element == "bill_state") {
		return "We need to know what state you live in.";
	} else if(element == "bill_zip") {
		return "We need to know what zip code you live in.";
	} else if(element == "bill_phone") {
		return "We need a phone number to reach you.";
	}
}

function checkBlank(theForm,which) {	// checks to make sure a form isn't blank.
	var eForm = theForm.form;
	var weAreGood = true;	// we're optimists, really.
	var str = "You have not filled out the form correctly.";

	if(which=="all") {	// spin thru all elements
		str = str + " You Must fill out all Fields.";
		var numE = theForm.length;
		for(var i=0;i<numE;i++) {
			if(theForm.elements[i].value == "") {
				weAreGood = false;
			}
		}
	} else {
		str = str + " You Must fill out all the fields except where indicated. The following fields were blank or invalid:\n";
		noBlanks = which.split(',');
		var numE = noBlanks.length;
		for(var k=0;k<numE;k++) {
			//str = str + "-" + noBlanks[k] + "\n";
		}
		for(var i=0;i<numE;i++) {
			var thisField = noBlanks[i];
			if(thisField == "email_addr" && theForm.elements[thisField].value != "" && !isEmail(theForm.elements[thisField].value)) {
				str += "- Your Email Address is invalid.\n";
			}
			if(theForm.elements[thisField].value == "" && theForm.elements[thisField].disabled == false) {	// only check fields that are active
				str = str + "- " + prettyErrors(theForm.elements[thisField].name) + "\n";
				weAreGood = false;
			}
		}
	}
	if(!weAreGood) {
		alert(str);
		return false;
	} else {
		return true;
	}
}

function shipRock(amt) {
	var theForm = document.forms['shipping'];
	var theAmount = theForm['shipCost'];
	
	theAmount.value = amt;
}

function mustHaveShipping(form) {
	var numRadios = form['shipMethod'].length;
	var theRadio = form['shipMethod'];
	var anyChecked = false;
	
	for(i=0;i<numRadios;i++) {
		if(theRadio[i].checked) {
			anyChecked = true;
		}
	}
	
	if(anyChecked) {
		return true;
	} else {
		alert('You must select a shipping method');
		return false;
	}
}

function checkCC(form) {
	var errors = false;
	var errorString = "You Have the Following errors:\n";
	var warnings = false;
	var warningString = "Warning:\n\n";
	
	
	if(form.ccNum.value == "") {
		errorString += "- The Credit Card Number cannot be blank\n";
		errors = true;
	}
	if(form.year.value == "" || form.month.value == "") {
		errorString += "- The Expiration Date cannot be blank\n";
		errors = true;
		var expBlank = true;
	}
	
	if(!expBlank) { // only check the exp date if it's not blank
		var dateVar = new Date();
		var month = dateVar.getMonth() + 1;
		var year = dateVar.getYear();
		var fromFormYear = "20" + form.year.value;
		if((fromFormYear < year) || (fromFormYear == year && form.month.value < month)) {
			errors = true;
			errorString += "- Your Card Is expired\n";
		} else if(form.month.value>12) {
			errors = true;
			errorString += "- There are only 12 Months in the year\n";
		}
	}
	
	if(form.cvv2.value == "") {
		warnings = true;
		warningString += "Your CVV2 field is blank.  If you do not enter this number, or it is incorrect, it will throw a flag with your Credit Card Company saying that there is suspicious activity.  ";
		warningString += "Your order will still be processed successfully, however you may receive a phone call validating your order from the Credit Card Company.  If you want to enter this number ";
		warningString += "press cancel and enter the number, otherwise click OK";
	}
	
	if(errors) {
		alert(errorString);
		errors = false;
		errorString = "";
		return false;
	} else if(warnings) {
		return confirm(warningString);
	}
	
}	

function contactChecker(form) {
	var returnString = "";
	var errors = false;
	if(form['dept'].value == "false") {
		returnString += "- You must select something from the drop down list, otherwise we won't know how to direct your comment.\n";
		errors = true;
	}
	if(form['email'].value == "") {
		returnString += "- We need to know your email address, or we can't get back in touch with you.\n";
		errors = true;
	} else {
		if(!isEmail(form['email'].value)) {
			returnString += "- Your Email address was invalid.\n";
			errors = true;
		}
	}
	if(form['name'].value == "") {
		returnString += "- Please tell us your name.\n";
		errors = true;
	}
	if(form['message'].value == "") {
		returnString += "- Your message was blank. Didn't you want to tell us something?\n";
		errors = true;
	}
	if(errors) {
		var returnMe = "There were errors with the message you tried to submit:\n\n" + returnString;
		alert(returnMe);
		return false;
	}
}

// see, i can code javascript.

// psyche, no i can't.. this guy's way better than me.

// http://www.bobbyvandersluis.com/
// genius.

function dynamicSelect(id1, id2) {
	// Feature test to see if there is enough W3C DOM support
	if (document.getElementById && document.getElementsByTagName) {
		// Obtain references to both select boxes
		var sel1 = document.getElementById(id1);
		var sel2 = document.getElementById(id2);
		// Clone the dynamic select box
		var clone = sel2.cloneNode(true);
		// Obtain references to all cloned options 
		var clonedOptions = clone.getElementsByTagName("option");
		// Onload init: call a generic function to display the related options in the dynamic select box
		refreshDynamicSelectOptions(sel1, sel2, clonedOptions);
		// Onchange of the main select box: call a generic function to display the related options in the dynamic select box
		sel1.onchange = function() {
			refreshDynamicSelectOptions(sel1, sel2, clonedOptions);
		};
	}
}
function refreshDynamicSelectOptions(sel1, sel2, clonedOptions) {
	// Delete all options of the dynamic select box
	while (sel2.options.length) {
		sel2.remove(0);
	}
	// Create regular expression objects for "select" and the value of the selected option of the main select box as class names
	var pattern1 = /( |^)(select)( |$)/;
	var pattern2 = new RegExp("( |^)(" + sel1.options[sel1.selectedIndex].value + ")( |$)");
	// Iterate through all cloned options
	for (var i = 0; i < clonedOptions.length; i++) {
		// If the classname of a cloned option either equals "select" or equals the value of the selected option of the main select box
		if (clonedOptions[i].className.match(pattern1) || clonedOptions[i].className.match(pattern2)) {
			// Clone the option from the hidden option pool and append it to the dynamic select box
			sel2.appendChild(clonedOptions[i].cloneNode(true));
		}
	}
}

function updatePrice(partNum,storeID) {
	if (document.getElementById && document.getElementsByTagName) {

		var partNumber = partNum.value;
		var price = document.getElementById(partNumber).value;
		var priceDisplayFieldTagId = "price_" + storeID;
		var hiddenPriceFieldTagId = "purchasePrice_" + storeID;
		var hiddenPartNumFieldTagId = "partNum_" + storeID;

		var priceDisplayField = document.getElementById(priceDisplayFieldTagId);
		var hiddenPriceField = document.getElementById(hiddenPriceFieldTagId);
		var hiddenPartNumField = document.getElementById(hiddenPartNumFieldTagId);
		
		hiddenPriceField.value = price;
		hiddenPartNumField.value = partNumber;
		priceDisplayField.innerHTML = price;
		
	}
	
}

function checkDropCart(storeID,opt1,opt2) {
	var hiddenPartNumFieldTagId = "partNum_" + storeID;
	var hiddenPartNumField = document.getElementById(hiddenPartNumFieldTagId);
	if (hiddenPartNumField.value == "null") {
		alert("You Must select " + opt1 + " and " + opt2 +" before adding this item to your cart.");
		return false;
	} else {
		return true;
	}
}