//__ Browser sniff: mozilla.org and www.dyn-web.com
var dom = (document.getElementById) ? true : false;
var ns4 = (document.layers && !dom) ? true : false;
var ns6 = ((navigator.userAgent.indexOf("Netscape6")>-1) && dom) ? true: false;
var ns7 = ((navigator.userAgent.indexOf("Gecko")>-1) && dom) ? true: false;
var ie4 = (document.all && !dom) ? true : false;
var ie5 = ((navigator.userAgent.indexOf("MSIE")>-1) && dom) ? true : false;
var nodyn = (!ns6 && !ns4 && !ie4 && !ie5) ? true : false;
var mac = (navigator.userAgent.toLowerCase().indexOf("mac")!=-1) ? true: false;
var safari = (typeof document.childNodes!="undefined" && typeof document.all=="undefined" && typeof navigator.taintEnabled=="undefined") ? true: false;

function df_ctgy_calcship(sku,usa,can,int) {
	document.getElementById('df_dhtml_ship_sku').innerHTML = sku;
	document.getElementById('df_dhtml_ship_usa').innerHTML = "$" + usa + " USD";
	document.getElementById('df_dhtml_ship_can').innerHTML = "$" + can + " USD";
	document.getElementById('df_dhtml_ship_int').innerHTML = "$" + int + " USD";
}

//__ Credit for find x-y script: http://blog.firetree.net/2005/07/04/javascript-find-position/
function findPosX(obj) {
    var curleft = 0;
    if(obj.offsetParent)
        while(1) {
          curleft += obj.offsetLeft;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.x)
        curleft += obj.x;
    return curleft;
}

function findPosY(obj) {
    var curtop = 0;
    if(obj.offsetParent)
        while(1) {
          curtop += obj.offsetTop;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.y)
        curtop += obj.y;
    return curtop;
}

//__ Popup window scripts
var flashwin=null;
function popup(url,target,w,h){
	LeftPosition=(screen.width)?(screen.width-w)/2:100;
	TopPosition=(screen.height)?(screen.height-h)/2:100;
	if(screen.width < w) {
		w = screen.width - 8
	}
	if(screen.height < h) {
		h = screen.height - 8
	}
	settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars=yes,location=no,directories=no,status=yes,menubar=no,toolbar=no,resizable=yes';
	flashwin=window.open(url,target,settings);
	flashwin.focus();
}

var flashwin_all=null;
function popup_all(url,target,w,h){
	LeftPosition=(screen.width)?(screen.width-w)/2:100;
	TopPosition=(screen.height)?(screen.height-h)/2:100;
	if(screen.width < w) {
		w = screen.width - 8
	}
	if(screen.height < h) {
		h = screen.height - 8
	}
	settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars=yes,location=yes,directories=yes,status=yes,menubar=yes,toolbar=yes,resizable=yes';
	flashwin_all=window.open(url,target,settings);
	flashwin_all.focus();
}

//__ Popup window to say site doesn't work with your browser
if (ie4 && mac) {
	popup('/Merchant2/please_use_different_browser.php?browser=Internet%20Explorer%204&os=Mac','_blank','530','430');
}
else if (ie5 && mac) {
	popup('/Merchant2/please_use_different_browser.php?browser=Internet%20Explorer%205&os=Mac','_blank','530','430');
}
else if (ns4) {
	popup('/Merchant2/please_use_different_browser.php?browser=Netscape%204&os=','_blank','530','430');
}
else if (!dom) {
	popup('/Merchant2/please_use_different_browser.php?browser=Unsupported&os=','_blank','530','430');
}

//__ BBBOnline Verification
function Rcertify() {
	popup('https://www.bbbonline.org/cks.asp?id=10111021227319992','Participant','590','440');
	window.name = 'opener';
} 

//__ Submit email signup form when Enter/Return key is pressed from jennifermadden.com/javascript/stringEnterKeyDetector.html
function checkEnter(e,form){ //e is event object passed from function invocation
	var characterCode //literal character code will be stored in this variable
	if(e && e.which){ 
		e = e;
		characterCode = e.which; //character code is contained in NN4's which property
	}
	else{
		e = event;
		characterCode = e.keyCode; //character code is contained in IE's keyCode property
	}

	if(characterCode == 13) { //if generated character code is equal to ascii 13 (if enter key)
		popup('about:blank','mailinglist','750','450'); 
		form.submit();
		return false
	}
	else{
	return true
	}
}

//__ The Adobe Image Rollover Functions
var preloadFlag = true;
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && preloadFlag) {
		for (var i = 0, n = arguments.length; i < n; i += 2) {
			document.images[arguments[i]].src = arguments[i + 1];
		}
	}
}

//__ The MM functions are copyright Macromedia
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_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

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_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];}
}

//__ Custom Image Functions for DraganFly
function DF_topnav_to_normal() {
	changeImages('nav_airplanes', '/Merchant2/images/layout/nav/nav_airplanes.png', 'nav_helicopters', '/Merchant2/images/layout/nav/nav_helicopters.png', 'nav_blimps', '/Merchant2/images/layout/nav/nav_blimps.png', 'nav_components', '/Merchant2/images/layout/nav/nav_components.png', 'nav_industrial', '/Merchant2/images/layout/nav/nav_industrial.png');
}

function DF_hide_all_subnav_layers() {
	MM_showHideLayers('subnav_airplanes','','hide', 'subnav_helicopters','','hide', 'subnav_blimps','','hide', 'subnav_components','','hide', 'subnav_industrial','','hide');
}

function DF_hide_all_tert_nav_layers() {
	MM_showHideLayers('tert_comp_servos','','hide', 'tert_comp_batt_tp','','hide', 'tert_comp_aircraft_parts','','hide', 'tert_comp_brushless_motors','','hide', 'tert_comp_radio_equip','','hide', 'tert_comp_speed_cont','','hide', 'tert_comp_super_combo_deals','','hide', 'tert_comp_wireless_video','','hide');
}

function DF_hide_all_quad_nav_layers() {
	MM_showHideLayers('quad_comp_ac_bladerunner','','hide', 'quad_comp_ac_blimp','','hide', 'quad_comp_ac_draganflyer','','hide', 'quad_comp_ac_vortex','','hide', 'quad_comp_ac_vortex_extreme','','hide');
}

function DF_hide_all_hider_layers() {
	MM_showHideLayers('hider_under_secondary','','hide');
}

function DF_show_all_hider_layers() {
	MM_showHideLayers('hider_under_secondary','','show');
}

function DF_hide_tert_quad_and_hider_layers() {
	DF_hide_all_tert_nav_layers();
	DF_hide_all_quad_nav_layers();
	DF_hide_all_hider_layers();

}

//__ Variables to determine what the current page is
var current_page = location.href;
var current_page_is_secure = (current_page.indexOf("https://")>-1) ? true: false;
var rc_airplanes_section = (current_page.indexOf("RC-AIRPLANES")>-1) ? true: false;
var rc_helicopters_section = (current_page.indexOf("RC-HELICOPTERS")>-1) ? true: false;
var rc_blimps_section = (current_page.indexOf("RC-BLIMPS")>-1) ? true: false;
var rc_components_section = (current_page.indexOf("RC-PARTS-")>-1) ? true: false;
var industrial_rc_section = (current_page.indexOf("INDUSTRIAL")>-1) ? true: false;

function DF_display_current_page_nav() {
	if (rc_airplanes_section) {
		DF_topnav_to_normal();
		changeImages('nav_airplanes', '/Merchant2/images/layout/nav/nav_airplanes-over.png');
		DF_hide_all_subnav_layers(); 
		MM_showHideLayers('subnav_airplanes','','show');
		DF_hide_tert_quad_and_hider_layers();
	}
	else if (rc_helicopters_section) {
		DF_topnav_to_normal();
		changeImages('nav_helicopters', '/Merchant2/images/layout/nav/nav_helicopters-over.png');
		DF_hide_all_subnav_layers(); 
		MM_showHideLayers('subnav_helicopters','','show');
		DF_hide_tert_quad_and_hider_layers();
	}
	else if (rc_blimps_section) {
		DF_topnav_to_normal();
		changeImages('nav_blimps', '/Merchant2/images/layout/nav/nav_blimps-over.png');
		DF_hide_all_subnav_layers(); 
		MM_showHideLayers('subnav_blimps','','show');
		DF_hide_tert_quad_and_hider_layers();
	}
	else if (rc_components_section) {
		DF_topnav_to_normal();
		changeImages('nav_components', '/Merchant2/images/layout/nav/nav_components-over.png');
		DF_hide_all_subnav_layers(); 
		MM_showHideLayers('subnav_components','','show');
		DF_hide_tert_quad_and_hider_layers();
	}
	else if (industrial_rc_section) {
		DF_topnav_to_normal();
		changeImages('nav_industrial', '/Merchant2/images/layout/nav/nav_industrial-over.png');
		DF_hide_all_subnav_layers(); 
		MM_showHideLayers('subnav_industrial','','show');
		DF_hide_tert_quad_and_hider_layers();
	}
	else {
		// if a page can not be determined we show the components secondary nav but not the button over state 
		DF_topnav_to_normal();
		DF_hide_all_subnav_layers(); 
		MM_showHideLayers('subnav_components','','show');
		DF_hide_tert_quad_and_hider_layers();
	}
}

//__ function to do nothing and take up the href space because miva is buggy on that
function DF_void() {
	return;
}

//__ Textarea Maxlength script Dynamic Drive www.dynamicdrive.com
function ismaxlength(obj) {
	var mlength=obj.getAttribute? parseInt(obj.getAttribute("maxlength")) : "";
	if (obj.getAttribute && obj.value.length>mlength) {
		obj.value=obj.value.substring(0,mlength);
	}
}

//__ function to check if wish/gift list form inputs are filled in
function check_giftlist_inputs(form) {
	var can_submit = true;
	var errormessage = "You forgot to enter these required fields:\n";
	if (form.fi.value=="") {
		can_submit = false;
		errormessage += "Your First Initial\n";
	}
	if (form.li.value=="") {
		can_submit = false;
		errormessage += "Your Last Initial\n";
	}
	if (form.myphone.value=="") {
			can_submit = false;
		errormessage += "Your Phone Number\n";
	}
	errormessage += "Please fill in these required fields and click the 'Save to Wish/Gift List' button again.";
	if (can_submit == false) {
		alert(errormessage);
	}
	else {
			form.submit();
	}
}

//__ Preload
function DF_preload_nav_images() {
	//navbar
	MM_preloadImages('/Merchant2/images/layout/nav/nav_airplanes-over.png', '/Merchant2/images/layout/nav/nav_helicopters-over.png', '/Merchant2/images/layout/nav/nav_blimps-over.png', '/Merchant2/images/layout/nav/nav_components-over.png', '/Merchant2/images/layout/nav/nav_industrial-over.png');
	//other
	MM_preloadImages('/Merchant2/images/layout/close_x-down.gif','/Merchant2/images/layout/close_x-over.gif');
}