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 MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
  return false;
}
/**
Loads the html from <url> into the mainContent table.
**/
function loadToMainContent(url)
{
	var mainC = $("#mainContent");
	mainC.children().fadeOut("normal", function()
	{ 
	   $.get(url, function(data)
		{
		   showLoading(mainC, false);
		   mainC.html(data);
		}) 
	});
	showLoading(mainC, true);
}

function addPicture( element )
{
   var idx = parseInt(element.attr('idx'));
   var fileInput = "<input type='file' name='pics[]' id='q34' idx='"+(idx + 1)+"' onchange='addPicture($(this));'/>";
   var maxPix = 9;
   var q = $("#q34");
  	var picList = q.siblings(".piclist");

  	if($("li", picList).length < maxPix)
  	{
      q.hide();
   	var file = q[0].value;
    	q.parent().prepend($(fileInput));
   	if(file != "")
   	{
      	picList.append("<li idx='"+idx+"' class='listitem'>"+ file +" <a onclick='removePic($(this).parent())'>remove</a></li>");
   	}
   }
}
function removePic(item)
{
   var top = item.parent().parent();
   var idx = item.attr('idx');
   var inpt = $("input[idx="+idx+"]", top);
   item.remove();
   inpt.remove();
}

function showLoading(container, show)
{
	if(show)
	{
		var loading = $("<div class='loading'><img src='images/loading.gif'></div>").hide();
		container.append(loading);
		loading.fadeIn("fast");
	}
	else
	{
		$(".loading", container).fadeOut("fast", function(){ $(".loading", container).remove(); });
	}
}

function ajaxLogin(logout)
{
   if(logout)
   {
      $.post("login.php?action=logout",{}, 
         function(data){
            location.href = "index.php";
            //$("#mainContent").html(data.fadeIn("normal");
         }, "html");
      return;
   }
   else
   {
      var form = $("#login");
      $("#mainContent").children().fadeOut("normal", function(){
         var email = $("#email", form).attr("value");
         var usr = $("#username", form).attr("value");
         var pass = $("#password", form).attr("value");
         var retTo = $("#returnto", form).attr("value");
         
         var obj = { password:pass , returnto:retTo };
         if(email) obj.email = email;
         if(usr) obj.username = usr;
         
         $.post("login.php", obj, 
            function(data){
               if ( $("a",data).length > 0)
                  $("#mainContent").html(data).fadeIn("normal");
               else
                  location.href = "index.php?"+retTo;
            }, "html");
      });
   }
}

function limitTextArea(limitField, limitNum)
{
	if (limitField.value.length > limitNum) {
		limitField.value = limitField.value.substring(0, limitNum);
	}
	else{
	   $("#chCount").html(limitNum - limitField.value.length);
	}
}

function getaircraftList(make, jet)
{
   $.getJSON("aircraftList.php", {'action':'modelList','jet':jet, 'make':make},
      function(data)
      {
         var opList = $("select[name=ModelGeneric]").empty()
         for(var i in data)
         {
            var item = data[i];
            opList.append("<option value="+item.id+">"+item.name+"</option>");
         }
         opList.append("<option value='-1'>Other</option>");
      });
}

function validateAdForm(data, form, ops)
{
   var req = $("#planeAdForm :not(label).required")
   for(i=0; i<req.length; i++)
   {
      if(req[i].value == "")
      {
         alert("A required field is not filled in properly.");
         return false;
      }
   }
   
   if($("#q9")[0].value.match(/^\d+$/) == null) //model year
   {
      alert("Model Year must be a number.");
      return false;
   }

   if($("#ttaf")[0].value.match(/^\d+$/) == null) //TTAF
   {
      alert("TTAF must be a number.");
      return false;
   }
   
   req = $("#q15_p")[0].value;
   if(req != '' && req.match(/^\d+$/) == null) //asking price
   {
      alert("Asking Price must be a number.");
      return false;
   }
   
   return true;
}