var tb_pathToImage = "inc/loadingAnimation.gif";
var imgLoader=null;

function tb_init(){
    if( imgLoader==null){
        imgLoader= new Image();// preload image
	    imgLoader.src = tb_pathToImage;
	}
}

function loader_show(caption) {
    if($("#TB_window").css("display") == "block"){
        $('#TB_ajaxWindowTitle').html(caption);
        return;
    }
	if (typeof document.body.style.maxHeight === "undefined") {//if IE 6
		$("body","html").css({height: "100%", width: "100%"});
		$("html").css("overflow","hidden");
		if (document.getElementById("TB_HideSelect") === null) {//iframe to hide select elements in ie6
			$("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
			$("#TB_overlay").click(tb_remove);
		}
	}else{//all others
		if(document.getElementById("TB_overlay") === null){
			$("body").append("<div id='TB_overlay'></div><div id='TB_window'></div>");
			$("#TB_overlay").click(tb_remove);
		}
	}
	
	if(tb_detectMacXFF()){
		$("#TB_overlay").addClass("TB_overlayMacFFBGHack");//use png overlay so hide flash
	}else{
		$("#TB_overlay").addClass("TB_overlayBG");//use background and opacity
	}
	
	if(caption===null){caption="";}
	$("body").append("<div id='TB_load'><img src='"+imgLoader.src+"' /></div>");//add loader to the page
	$('#TB_load').show();//show loader
	$("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a> or Esc Key</div></div>");
}

function fill_show(content,params){
    
	TB_WIDTH = (params==null || params.width==undefined)?630:params.width*1; //defaults to 630 if no paramaters were added to URL
	TB_HEIGHT = (params==null || params.height==undefined)?440:params.height*1; //defaults to 440 if no paramaters were added to URL
	ajaxContentW = TB_WIDTH - 30;
	ajaxContentH = TB_HEIGHT - 45;
	
	if($("#TB_window").css("display") != "block"){
		if(params==null || params.modal==undefined || params.modal!= "true"){//ajax no modal
		    $("#TB_window").append("<div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px'></div>");
		}else{//ajax modal
		    $("#TB_overlay").unbind();
		    $("#TB_window").append("<div id='TB_ajaxContent' class='TB_modal' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");	
		}
	}else{//this means the window is already up, we are just loading new content via ajax
		$("#TB_ajaxContent")[0].style.width = ajaxContentW +"px";
		$("#TB_ajaxContent")[0].style.height = ajaxContentH +"px";
		$("#TB_ajaxContent")[0].scrollTop = 0;
	}
	$("#TB_closeWindowButton").click(tb_remove);
	$("#TB_ajaxContent").html(content);
	
	tb_position();
	$("#TB_load").remove();
	$("#TB_window").css({display:"block"});
	document.onkeyup = function(e){ 	
		if (e == null) { // ie
			keycode = event.keyCode;
		} else { // mozilla
			keycode = e.which;
		}
		if(keycode == 27){ // close
			tb_remove();
		}	
	};
}

//helper functions below
function tb_showIframe(){
	$("#TB_load").remove();
	$("#TB_window").css({display:"block"});
}

function tb_remove() {
 	$("#TB_imageOff").unbind("click");
	$("#TB_closeWindowButton").unbind("click");
	$("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').trigger("unload").unbind().remove();});
	$("#TB_load").remove();
	if (typeof document.body.style.maxHeight == "undefined") {//if IE 6
		$("body","html").css({height: "auto", width: "auto"});
		$("html").css("overflow","");
	}
	document.onkeydown = "";
	document.onkeyup = "";
	return false;
}

function tb_position() {
$("#TB_window").css({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
	if ( !(jQuery.browser.msie && jQuery.browser.version < 7)) { // take away IE6
		$("#TB_window").css({marginTop: '-' + parseInt((TB_HEIGHT / 2),10) + 'px'});
	}
}

function tb_parseQuery ( query ) {
   var Params = {};
   if ( ! query ) {return Params;}// return empty object
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
      var KeyVal = Pairs[i].split('=');
      if ( ! KeyVal || KeyVal.length != 2 ) {continue;}
      var key = unescape( KeyVal[0] );
      var val = unescape( KeyVal[1] );
      val = val.replace(/\+/g, ' ');
      Params[key] = val;
   }
   return Params;
}

function tb_getPageSize(){
	var de = document.documentElement;
	var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
	var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;
	arrayPageSize = [w,h];
	return arrayPageSize;
}

function tb_detectMacXFF() {
  var userAgent = navigator.userAgent.toLowerCase();
  if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
    return true;
  }
}