function OpenViewer(strURL)  {
    var divDocViewer;
	var intLeft, intTop, intWidth, intHeight;
	var standardbody, scroll_top;

	standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body 
	scroll_top=(document.all)? standardbody.scrollTop : window.pageYOffset
	
	intWidth = 600;
	intHeight = 470;
	intLeft = (screen.width / 2) - (intWidth / 2);
	intTop = (screen.height / 2) - (intHeight / 2);
//	intLeft = 70;
	intTop = 120 + scroll_top;	
    
    var sHTML = '<iframe name="frmImage" id="frmImage" src="' + strURL + '" width="' + intWidth + '" height="' + intHeight + '" frameborder="0" scrolling="no" ></iframe>';
    sm(sHTML,intWidth, intHeight, intTop, intLeft);
    return false;	
}

function closeViewer()  {
    hm();
    return false;	
}

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;    // why need to hide iframe?
    tag=document.getElementsByTagName('object');
    for(i=tag.length-1;i>=0;i--)
        tag[i].style.visibility=h;
}

// DT - add tp, lf
// DT - obl was originally div, causes double loading for iframe
// DT - change obl to obl_html
//function sm(obl, wd, ht, tp, lf){
function sm(obl_html, wd, ht, tp, lf){
    var h='hidden';
    var b='block';
    var p='px';
    var obol=$('ol'); 
    var obbxd = $('mbd');
    // get html source instead of div
    //obbxd.innerHTML = $(obl).innerHTML;
    obbxd.innerHTML = obl_html;
    //DT - add 100, 50 more to cover more area - IE bug?
    obol.style.height=pageHeight()+150+p;
    obol.style.width=pageWidth()+p;
    obol.style.top=posTop()+p;
    obol.style.left = 0+p;
    obol.style.display=b;

    //var tp=posTop()+((pageHeight()-ht)/2)-12;
    //var lt=posLeft()+((pageWidth()-wd)/2)-12;
    var obbx=$('mbox');
    // DT - don't center the div, use tp, lf instead
    //obbx.style.top=(tp<0?0:tp)+p;
    //obbx.style.left=(lt<0?0:lt)+p;
    obbx.style.top=tp+p;
    obbx.style.left=lf+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=''
}

//DT Add Resize
function rs(wd, ht, tp, lf) {
    var p='px';
    $('mbox').style.top=tp+p;
    $('mbox').style.left=lf+p;
    $('mbox').style.width=wd+p;
    $('mbox').style.height=ht+p;
}

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;