var lastMenuId = 0;
var timer;
var mSheets = new Array();
var currZ = 100;
var mReady = false;
var mLeftPos = 526;

function MenuLink(textVal, linkVal, subVal){
	this.text = textVal;
	this.action = linkVal;
	this.submenu = subVal;
}

function menuHideAll(){
	for (var c in mSheets) mSheets[c].hide();
}

function menuHideTimerSet(){
	timer = window.setTimeout(menuHideAll, 100);
}

function menuHideTimerReset(){
	if (timer) window.clearTimeout(timer);
}

function menuAddLink(textVal, linkVal){
	this.links[this.links.length] = new MenuLink(textVal, linkVal, null);
}

function menuAddSubmenu(textVal, linkVal){
	this.links[this.links.length] = new MenuLink(textVal, linkVal, new MenuSheet(this));
}

function menuShow(leftVal, topVal){
	this.block.style.left = leftVal + "px";
	this.block.style.top = topVal + "px";
	this.block.style.display = "block";
}

function menuHide(){
	this.hideCh();
	this.block.style.display = "none";
}

function menuFlip(leftVal, topVal){
	var disp = this.block.style.display;
	if (disp == "none") this.show(leftVal, topVal);
	else this.hide();
}

function menuHideCh(){
	for (var c in this.links){
		curLink = this.links[c];
		if (curLink.submenu) curLink.submenu.hide();
	}
}

function menuCreate(path){
	var res = "<div class=\"menu-sh\" onmouseout=\"menuHideTimerSet()\" onmouseover=\"menuHideTimerReset()\"><table cellpadding=\"0\" cellspacing=\"0\" class=\"tab-menu-sh\">";
	var curLink;
	var newPath;
	if (path == null) path = "mSheets[" + this.id + "]";
	var nikCounter = 0;
	for (var c in this.links){
		curLink = this.links[c];
		nikCounter++;
		res += "<tr><td class=\"blk-menu-sh"+nikCounter;
		if (curLink.submenu) res += " blk-menu-arr";
		res += "\" onmouseover=\"setClass(this, 'blk-menu-sh-act"+nikCounter;
		if (curLink.submenu) res += " blk-menu-arr-act";
		res += "'); ";
		res += path + ".hideCh()";
		if (curLink.submenu){
			newPath = path + ".links[" + c + "].submenu";
			res += "; " + newPath + ".show(getLeftPos(this) + this.offsetWidth, getTopPos(this) - 2)";
			curLink.submenu.create(newPath);
		}
		res += "\" onmouseout=\"setClass(this, 'blk-menu-sh"+nikCounter;
		if (curLink.submenu) res += " blk-menu-arr";
		res += "')\" onclick=\"gotoURL('"+curLink.action+"')\" nowrap=\"nowrap\">" + curLink.text + "</td></tr>";
	}
	res += "</table></div>";
	this.block.innerHTML = res;
	this.block.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=90)";
}

function MenuSheet(parentObj){
	this.links = new Array();
	this.addLink = menuAddLink;
	this.addSubmenu = menuAddSubmenu;
	this.create = menuCreate;
	this.show = menuShow;
	this.hide = menuHide;
	this.flip = menuFlip;
	this.hideCh = menuHideCh;
	this.id = lastMenuId;
	lastMenuId++;
	this.parent = parentObj; 
	this.block = document.createElement("DIV");
	this.block.className = "blk-menu";
	this.block.style.position = "absolute";
	this.block.style.display = "none";
	this.block.style.zIndex = currZ;
	currZ++;
	this.block.id = "ms" + this.id;
	document.body.appendChild(this.block);
}

function showMenu(objVal, numVal){
	if (mReady){
		menuHideAll();
		objVal.className = "item act";
		mSheets[numVal].show(getLeftPos(objVal)+0, mTopPos+10);
		menuHideTimerReset();
	}
}

function hideMenu(objVal, numVal){
	if (mReady){
		menuHideTimerSet();
		objVal.className = "item";
	}
}

function createMenus(){
	for (c = 0; c < 9; c++) mSheets[c] = new MenuSheet(); 
 
// Seminars

	mSheets[1].addLink("Nursing Certification Review Symposium", "nursesymposium.php");
	mSheets[1].addLink("Peds RN Symposium", "Peds_RN_Symposium.php");
	mSheets[1].addLink("CPN Review Course", "CPN_Review_Course.php");
	mSheets[1].addLink("Pediatric CCRN Review Course", "pediatric_ccrn_review_course.php");
	mSheets[1].addLink("Neonatal Intensive Care Nursing Review Course", "Neonatal_Intensive_Care_Nursing_Review_Course.php");
	mSheets[1].addLink("Low Risk Neonatal Nursing Review Course", "Low_Risk_Neonatal_Certification.php");
	mSheets[1].addLink("Certified Nurse Manager and Leader Review Course", "certified_nurse_manager.php");
	mSheets[1].addLink("Pediatric Laboratory Interpretation", "Pediatric_Laboratory_Interpretation.php");
	mSheets[1].addLink("Keynote Presentations", "Keynote_Presentations.php");
	mSheets[1].addLink("Presentations Potpourri", "Presentations_Potpourri.php");
	mSheets[1].addLink("Pediatric Physical Assessment", "Pediatric_Physical_Assessment.php");
// Products

	mSheets[2].addLink("CPN Study Aides", "details.php?page=CPN_Study_Aides_1.php");
	mSheets[2].addLink("Pediatric CCRN Study Aides", "details.php?page=Pediatric_CCRN_Study_Aides_3.php");
	mSheets[2].addLink("CPEN Study Aides", "details.php?page=CPEN_Study_Aides_2.php");
	mSheets[2].addLink("CE for Nurses DVDs, Audio CDs, Self Learning Modules", "details.php?page=CE_for_Nurses_DVDs_Audio_CDs.php");

	
for (var c in mSheets) mSheets[c].create();

mReady = true;
}