var currentTip = 0;
var tipMax;
var tips = null;
var dykHide = 'hide';
var dykHidePermanent = 'permanent_hide';

function initHelp() {
	var url = "showXmlDataContent.do?name=XmlQuestions.StrategiesHelp";
	$.ajax({
		url: url,
		type: "POST",
		data: "",
		dataType: "html",
		success: function(data){
			$("div#help div.h2center").after($("div#strategyTips",data).html() + "<hr />");
			$("div#strategyTips span[id^='tip_']",data).each(function() {
				$("#dyk-box div#content").append(this);
			});
			if($("div#strategy_results").css("display") == 'none')
				initDYK(false);
			else if($("div#Strategies").attr("newstrategy") == 'true')
				initDYK(true);
			else
				initDYK(false);
		}
	});
}

function initDYK(o,co){
	setTipMax();
	if(co == undefined) co = $.cookie("DYK");
	if(!o){
		tips = $("#dyk-box,#dyk-shadow").hide();
		return;
	}else if(co == dykHide || co == dykHidePermanent){
		tips = $("#dyk-box,#dyk-shadow").hide();
		if (co == dykHidePermanent) setDYKCookie(true); // Renew the cookie if needed
		return;
	}
	$("#dyk-box,#dyk-shadow").show();
	var randomnumber=Math.floor(Math.random()*tipMax);
	setCurrent(randomnumber);
	$("#dyk-box input#close").click(function(){
		dykClose();
	});
	
	// In some cases, repeated calls to initDYK result in
	// multiple bindings;  to avoid this, unbind any click
	// handler before re-attaching.
	$("#dyk-box input#previous").unbind('click');
	$("#dyk-box input#previous").click(function(){ prevTip(); });
	$("#dyk-box input#next").unbind('click');
	$("#dyk-box input#next").click(function(){ nextTip(); });

	$("div#dyk-box").resizable({
		minWidth: 405,
		minHeight: 87,
		alsoResize: '#dyk-shadow,#dyk-text'
	});
	$("div#dyk-shadow").resizable();

	$("div#dyk-box").draggable({
		handle: ".dragHandle",
		containment: 'window',
/*		drag: function(e, u){
			var lef = $(this).css('left');
			var to = $(this).css('top');
			lef = parseInt(lef.split("px")[0]) - 3;
			to = parseInt(to.split("px")[0]) + 3;
			$("div#dyk-shadow").css({
				top: to + "px",
				left: lef + "px"
			});
		}*/
		start:function(e,ui){
			$("#dyk-shadow").hide();
		},
		stop:function(e,ui){
			var lef = $(this).css('left');
			var to = $(this).css('top');
			lef = parseInt(lef.split("px")[0]) + 6;
			to = parseInt(to.split("px")[0]) + 6;
			$("div#dyk-shadow").css({
				top: to + "px",
				left: lef + "px"
			});
			$("#dyk-shadow").show();
		}
	});
}

function setTipMax(){
	tipMax = $("#dyk-box span[id^='tip_']").length;
}

function setCount(){
	$("#dyk-count").text((currentTip + 1) + " of " + (tipMax));
}

function displayCurrent(){
	if(currentTip >= 0 && currentTip < tipMax )
		$("#dyk-box div#dyk-text").html($("#dyk-box span#tip_" + currentTip).html());
	else {
		if(currentTip < 0)
			currentTip = tipMax - 1;
		else
			currentTip = 0;
		$("#dyk-box div#dyk-text").html($("#dyk-box span#tip_" + currentTip).html());
	}
	$("#dyk-box div#dyk-text a").click(function(){
		showPanel('help');
	});
	setCount();
}

function setCurrent(tipnum){
	currentTip = tipnum;
	displayCurrent();
}

function nextTip(){
	currentTip = parseInt(currentTip) + 1;
	displayCurrent();
}

function prevTip(){
	currentTip = parseInt(currentTip) - 1;
	displayCurrent();
}

function dykOpen(){
//	$(tips[0]).find("input#stay-closed-check").attr("disabled",true);
//	$("div.innertube").append(tips[0]);
//	$("div.innertube").append(tips[1]);
	initDYK(true, false);
}

function dykClose(){
	var ex = $("div#dyk-box input#stay-closed-check").attr("checked");
	setDYKCookie(ex);
	tips = $("#dyk-box,#dyk-shadow").hide();
}

function setDYKCookie(expire){
	if(expire)
		$.cookie("DYK",dykHidePermanent,{domain: secondLevelDomain(),path: '/',expires: 300}); // Use different value if user checked "never show again"
	else
		$.cookie("DYK",dykHide,{domain: secondLevelDomain(),path: '/'});
}


// return domain.org from www.domain.org
function secondLevelDomain(){
  dm = document.domain.split(/\./);
  if(dm.length > 1) {
    return(dm[dm.length-2] + "." +  dm[dm.length-1]) ;
  }else{
    return("");
  }
}