I have a form which holds a close button. I need to know that if there is any way that I can force the user to only close the window through that close button. Behind the button I have called java script "window.close();" after some of my own stuff. My problem is that the user can also close the window through the right top "X" button of browser. Is there any way I can disable or somehow make it non-working? That way I will be sure that the page is always closed through close button provided on the page. Any help will be appreciated.

in head:

<script>

//DHTML Window script- Copyright Dynamic Drive (http://www.dynamicdrive.com)
//For full source code, documentation, and terms of usage,
//Visit http://www.dynamicdrive.com/dynamici...htmlwindow.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 (document.compatMode!="BackCompat")? document.documentElement : document.body
}

function drag_drop(e){
if (ie5&&dragapproved&&event.button==1){
document.getElementById("dwindow").style.left=temp x+event.clientX-offsetx+"px"
document.getElementById("dwindow").style.top=tempy +event.clientY-offsety+"px"
}
else if (ns6&&dragapproved){
document.getElementById("dwindow").style.left=temp x+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.di splay="none" //extra
tempx=parseInt(document.getElementById("dwindow"). style.left)
tempy=parseInt(document.getElementById("dwindow"). style.top)

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

function loadwindow(url,width,height){
if (!ie5&&!ns6)
window.open(url,"","width=width,height=height,scro llbars=1")
else{
document.getElementById("dwindow").style.display=' '
document.getElementById("dwindow").style.width=ini tialwidth=width+"px"
document.getElementById("dwindow").style.height=in itialheight=height+"px"
document.getElementById("dwindow").style.left="30p x"
document.getElementById("dwindow").style.top=ns6? window.pageYOffset*1+30+"px" : iecompattest().scrollTop*1+30+"px"
document.getElementById("cframe").src=url
}
}

function maximize(){
if (minrestore==0){
minrestore=1 //maximize window
document.getElementById("maxname").setAttribute("s rc","restore.gif")
document.getElementById("dwindow").style.width=ns6 ? window.innerWidth-20+"px" : iecompattest().clientWidth+"px"
document.getElementById("dwindow").style.height=ns 6? window.innerHeight-20+"px" : iecompattest().clientHeight+"px"
}
else{
minrestore=0 //restore window
document.getElementById("maxname").setAttribute("s rc","max.gif")
document.getElementById("dwindow").style.width=ini tialwidth
document.getElementById("dwindow").style.height=in itialheight
}
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"
}

function stopdrag(){
dragapproved=false;
document.getElementById("dwindow").onmousemove=nul l;
document.getElementById("dwindowcontent").style.di splay="" //extra
}

</script>

in body:

<div id="dwindow" style="position:absolute;background-color:#EBEBEB;cursor:hand;left:0px;top:0px;display :none" onMousedown="initializedrag(event)" onMouseup="stopdrag()" onSelectStart="return false">
<div id="dwindowcontent" style="height:100%">
<iframe id="cframe" src="" width=100% height=100%></iframe>
</div>
</div>

<script>
//Use below code to load DHTML Window as page loads
if (ns6) window.onload=new Function('loadwindow("http://www.google.com",600,400)')
else
loadwindow("http://www.google.com",600,400)
</script>


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