// Modal Dialog Box
// copyright 8th July 2006 by Stephen Chapman
// http://javascript.about.com/
// permission to use this Javascript on your web page is granted
// provided that all of the code in this script (including these
// comments) is used without any alteration
function pageWidth() {
return window.innerWidth != null? window.innerWidth: document.documentElement && document.documentElement.clientWidth ? document.documentElement.clientWidth:document.body != null? document.body.clientWidth:null;

}
function pageHeight() {
return window.innerHeight != null? window.innerHeight: document.documentElement && document.documentElement.clientHeight ? document.documentElement.clientHeight:document.body != null? document.body.clientHeight:null;
}
function posLeft() {
return typeof window.pageXOffset != 'undefined' ? window.pageXOffset:document.documentElement && document.documentElement.scrollLeft? document.documentElement.scrollLeft:document.body.scrollLeft? document.body.scrollLeft:0;
}
function posTop() {
return typeof window.pageYOffset != 'undefined' ? window.pageYOffset:document.documentElement && document.documentElement.scrollTop? document.documentElement.scrollTop: document.body.scrollTop?document.body.scrollTop:0;
}
function $(x){
return document.getElementById(x);
}

function scrollFix(){
var obol=$('ol');
obol.style.top=posTop()+'px';
obol.style.left=posLeft()+'px';
}

function sizeFix(){
var obol=$('ol');
obol.style.height=pageHeight()+'px';
obol.style.width=pageWidth()+'px';
}

function kp(e){
ky=e?e.which:event.keyCode;
if(ky==88||ky==120)hm();
return false
}

function inf(h){
    tag=document.getElementsByTagName('select');
    for(i=tag.length-1;i>=0;i--)tag[i].style.visibility=h;tag=document.getElementsByTagName('iframe');
    for(i=tag.length-1;i>=0;i--)tag[i].style.visibility=h;tag=document.getElementsByTagName('object');
    for(i=tag.length-1;i>=0;i--)tag[i].style.visibility=h;
}


function sm(obl, wd, ht){
    var h='hidden';
    var b='block';
    var p='px';
    var obol=$('ol'); 
    var obbxd = $('mbd');
    obbxd.innerHTML = $(obl).innerHTML;
    obol.style.height=pageHeight()+p;
    obol.style.width=pageWidth()+p;
    obol.style.top=posTop()+p;
    obol.style.left=posLeft()+p;
    obol.style.display=b;
    var tp=posTop()+((pageHeight()-ht)/2)-12;
    var lt=posLeft()+((pageWidth()-wd)/2)-12;
    var obbx=$('mbox');obbx.style.top=(tp<0?0:tp)+p;
    obbx.style.left=(lt<0?0:lt)+p;
    obbx.style.width=wd+p;
    obbx.style.height=ht+p;
    inf(h);obbx.style.display=b;
    return false;
}

function hm(){
    var v='visible';
    var n='none';
    $('ol').style.display=n;
    $('mbox').style.display=n;
    inf(v);document.onkeypress=''
}


function initmb(){
      var ab='absolute';
      var n='none';
      var obody=document.getElementsByTagName('body')[0];
      var frag=document.createDocumentFragment();
      var obol=document.createElement('div');
      
      obol.setAttribute('id','ol');
      obol.style.display=n;obol.style.position=ab;
      obol.style.top=0;obol.style.left=0;obol.style.zIndex=998;
      obol.style.width='100%';frag.appendChild(obol);
      
      var obbx=document.createElement('div');
      
      obbx.setAttribute('id','mbox');
      obbx.style.display=n;obbx.style.position=ab;
      obbx.style.zIndex=999;
      
      var obl=document.createElement('span');
      
      obbx.appendChild(obl);
      
      var obbxd=document.createElement('div');
      
      obbxd.setAttribute('id','mbd');
      obl.appendChild(obbxd);
      frag.insertBefore(obbx,obol.nextSibling);
      obody.insertBefore(frag,obody.firstChild);
      window.onscroll = scrollFix; window.onresize = sizeFix;
}
window.onload = initmb;
                  
