//Visit http://www.dynamicdrive.com/dynamicindex8/dhtmlwindow.htm

var dragapproved=false
var minrestore=0
var initialwidth,initialheight
var ie5=document.all&&document.getElementById
var ns6=document.getElementById&&!document.all

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

function drag_drop(e){
if (ie5&&dragapproved&&event.button==1){
document.getElementById("dwindow").style.left=tempx+event.clientX-offsetx+"px"
document.getElementById("dwindow").style.top=tempy+event.clientY-offsety+"px"
}
else if (ns6&&dragapproved){
document.getElementById("dwindow").style.left=tempx+e.clientX-offsetx+"px"
document.getElementById("dwindow").style.top=tempy+e.clientY-offsety+"px"
}
}

function initializedrag(e){
offsetx=ie5? event.clientX : e.clientX
offsety=ie5? event.clientY : e.clientY
document.getElementById("dwindowcontent").style.display="none" //extra
tempx=parseInt(document.getElementById("dwindow").style.left)
tempy=parseInt(document.getElementById("dwindow").style.top)

dragapproved=true
document.getElementById("dwindow").onmousemove=drag_drop
}

function loadwindow(url,width,height){

var iWidth = document.body.clientWidth;
var iHeight = document.body.clientHeight;

var posW = ( iWidth - width ) / 2 ;
var posH = ( iHeight - height ) / 2 ;

if (!ie5&&!ns6)
window.open(url,"","width=width,height=height,scrollbars=0")
else{
document.getElementById("dwindow").style.display=''
document.getElementById("dwindow").style.width=initialwidth=width+"px"
document.getElementById("dwindow").style.height=initialheight=height+"px"
document.getElementById("dwindow").style.left= posW + "px"
document.getElementById("dwindow").style.top=ns6? window.pageYOffset*1+posH+"px" : iecompattest().scrollTop*1+posH+"px"
document.getElementById("cframe").src=url
}
overlay();
}

function maximize(){
if (minrestore==0){
minrestore=1 //maximize window
document.getElementById("maxname").setAttribute("src","restore.gif")
document.getElementById("dwindow").style.width=ns6? window.innerWidth-20+"px" : iecompattest().clientWidth+"px"
document.getElementById("dwindow").style.height=ns6? window.innerHeight-20+"px" : iecompattest().clientHeight+"px"
}
else{
minrestore=0 //restore window
document.getElementById("maxname").setAttribute("src","max.gif")
document.getElementById("dwindow").style.width=initialwidth
document.getElementById("dwindow").style.height=initialheight
}
document.getElementById("dwindow").style.left=ns6? window.pageXOffset+"px" : iecompattest().scrollLeft+"px"
document.getElementById("dwindow").style.top=ns6? window.pageYOffset+"px" : iecompattest().scrollTop+"px"
}

function closeit(){
document.getElementById("dwindow").style.display="none";
document.getElementById("overlay").style.display="none";
document.body.style.overflowY="scroll";
}

function stopdrag(){
dragapproved=false;
document.getElementById("dwindow").onmousemove=null;
document.getElementById("dwindowcontent").style.display="" //extra
}

function overlay(){
document.body.style.overflowY="hidden";
var objBody = document.getElementsByTagName("body").item(0);
var objOverlay = document.createElement("img");
objOverlay.setAttribute('id','overlay');
objOverlay.className='overlay';
objOverlay.onclick = function () { closeit(); return false;}
objOverlay.src='/data/clear.gif';
objOverlay.style.width = '100%';
objOverlay.style.height = document.body.scrollHeight; //'100%';
objOverlay.style.display = 'block';
objOverlay.style.position = 'absolute';
objOverlay.style.top = '0';
objOverlay.style.left = '0';
objOverlay.style.zIndex = '90';
objBody.insertBefore(objOverlay, objBody.firstChild);
}