/*****************************************************************
		MAIN jAVASCRIPT FUNCTIONS FILE FOR NEWSRX.COM
*****************************************************************/

function changeLibPage(page, totalPages) {
	for(i=1; i<=totalPages; i++) {
		document.getElementById("page_" + i).style.display = "none";
	}
	document.getElementById("page_" + page).style.display = "block";
}

var NewWinPutX=10;
var NewWinPutY=10;

function Start(page) {
OpenWin = this.open(page, "CtrlWindow", "toolbar=no,menubar=yes,location=yes,scrollbars=yes,resizable=yes,width=650,height=400,left=100,top=100");
}

function popupWin(page){
	var w = 450;
	var h = 220;
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	
	window.open('http://www.newsrx.com/popup_tos.php', '', 'toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=0,resizable=0,width='+w+',height='+h+',left='+winl+',top='+wint+'');
}

function popupWin2(page,width,height){
	var w = width;
	var h = height;
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	
	window.open(page, '', 'toolbar=1,scrollbars=1,location=0,statusbar=1,menubar=0,resizable=0,width='+w+',height='+h+',left='+winl+',top='+wint+'');
}

function popupImg(page){
	var w = 600;
	var h = 400;
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	
	window.open(page, '', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width='+w+',height='+h+',left='+winl+',top='+wint+'');
}

function toggleDisplay(areaID) {
	if( document.getElementById(areaID).style.display == "none" ) {
    	document.getElementById(areaID).style.display = "block";
  	} else {
    	document.getElementById(areaID).style.display = "none";
    }
}


var Open = ""
var Closed = ""
function preload(){
	if(document.images){
		Open = new Image(16,13)
		Closed = new Image(16,13)
		Open.src = "http://www.newsrx.com/product_descriptions/images/open.gif"
		Closed.src = "http://www.newsrx.com/product_descriptions/images/closed.gif"
	}
	
	newImage();
}
function showhide(what,what2){
	if (what.style.display=='none'){
		what.style.display='';
		what2.src=Open.src
	}
	else{
		what.style.display='none'
		what2.src=Closed.src
	}
}



function enough(limit, validate) {
	var el, msg = '', howmany = 0;
	for (var i=0; i < document.subscriber.elements.length; ++i) {
		el = document.subscriber.elements[i];
		if (el.type == 'checkbox' && el.checked) ++howmany;
	}
	msg +=
	(howmany>limit) ?
	'Please select at most ' + limit + '.' :
	(validate && howmany != limit) ?
	'Please check at least ' + limit + ' of the boxes, my friend.' :
	'';
	if (msg) {
		alert(msg);
		return false;
	}
	return true;
}

/***********************************************
* Cool DHTML tooltip script II- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/

var offsetfromcursorX=12 //Customize x offset of tooltip
var offsetfromcursorY=10 //Customize y offset of tooltip

var offsetdivfrompointerX=10 //Customize x offset of tooltip DIV relative to pointer image
var offsetdivfrompointerY=14 //Customize y offset of tooltip DIV relative to pointer image. Tip: Set it to (height_of_pointer_image-1).

document.write('<div id="dhtmltooltip"></div>') //write out tooltip DIV
document.write('<img id="dhtmlpointer" src="http://www.newsrx.com/images/arrow2.gif">') //write out pointer image

var ie=document.all
var ns6=document.getElementById && !document.all
var enabletip=false
if (ie||ns6)
var tipobj=document.all? document.all["dhtmltooltip"] : document.getElementById? document.getElementById("dhtmltooltip") : ""

var pointerobj=document.all? document.all["dhtmlpointer"] : document.getElementById? document.getElementById("dhtmlpointer") : ""

function ietruebody(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function ddrivetip(thetext, thewidth, thecolor){
if (ns6||ie){
if (typeof thewidth!="undefined") tipobj.style.width=thewidth+"px"
if (typeof thecolor!="undefined" && thecolor!="") tipobj.style.backgroundColor=thecolor
tipobj.innerHTML=thetext
enabletip=true
return false
}
}

function positiontip(e){
if (enabletip){
var nondefaultpos=false
var curX=(ns6)?e.pageX : event.clientX+ietruebody().scrollLeft;
var curY=(ns6)?e.pageY : event.clientY+ietruebody().scrollTop;
//Find out how close the mouse is to the corner of the window
var winwidth=ie&&!window.opera? ietruebody().clientWidth : window.innerWidth-20
var winheight=ie&&!window.opera? ietruebody().clientHeight : window.innerHeight-20

var rightedge=ie&&!window.opera? winwidth-event.clientX-offsetfromcursorX : winwidth-e.clientX-offsetfromcursorX
var bottomedge=ie&&!window.opera? winheight-event.clientY-offsetfromcursorY : winheight-e.clientY-offsetfromcursorY

var leftedge=(offsetfromcursorX<0)? offsetfromcursorX*(-1) : -1000

//if the horizontal distance isn't enough to accomodate the width of the context menu
if (rightedge<tipobj.offsetWidth){
//move the horizontal position of the menu to the left by it's width
tipobj.style.left=curX-tipobj.offsetWidth+"px"
nondefaultpos=true
}
else if (curX<leftedge)
tipobj.style.left="5px"
else{
//position the horizontal position of the menu where the mouse is positioned
tipobj.style.left=curX+offsetfromcursorX-offsetdivfrompointerX+"px"
pointerobj.style.left=curX+offsetfromcursorX+"px"
}

//same concept with the vertical position
if (bottomedge<tipobj.offsetHeight){
tipobj.style.top=curY-tipobj.offsetHeight-offsetfromcursorY+"px"
nondefaultpos=true
}
else{
tipobj.style.top=curY+offsetfromcursorY+offsetdivfrompointerY+"px"
pointerobj.style.top=curY+offsetfromcursorY+"px"
}
tipobj.style.visibility="visible"
if (!nondefaultpos)
pointerobj.style.visibility="visible"
else
pointerobj.style.visibility="hidden"
}
}

function hideddrivetip(){
if (ns6||ie){
enabletip=false
tipobj.style.visibility="hidden"
pointerobj.style.visibility="hidden"
tipobj.style.left="-1000px"
tipobj.style.backgroundColor=''
tipobj.style.width=''
}
}

document.onmousemove=positiontip

// JavaScript Document
MyImages=new Array();
MyImages[0]='/images/home/encyk_banner2.jpg';
MyImages[1]='/images/home/encyk_banner3.jpg';
MyImages[2]='/images/home/encyk_banner4.jpg';

function newImage()
{
	document.getElementById("mainImage").setAttribute("src", MyImages[Math.round(Math.random()*2)])
}