var resId=0;
var imgWndw;
function popimg(imgLink, Title) {
  if (typeof(window.resizeBy)=='undefined') return true;
  var sl=(document.body.clientWidth-100)/2;
  var st=(document.body.clientHeight-100)/2;
  imgWndw=window.open(imgLink,'swnd','width=50,height=50,toolbar=no,menubar=no,location=no,status=no,resizable=yes,scrollbars=no,left='+sl+',top='+st);
  imgWndw.focus();
  with (imgWndw.document){
    open();
    write('<ht'+'ml><he'+'ad><ti'+'tle>'+Title+'</ti'+'tle>'+ '</he'+'ad><bo'+'dy leftmargin="0" topmargin="0" '+ 'rightmargin="0" bottommargin="0" marginwidth="0" '+ 'style="margin:0;padding:0;position:fixed;overflow:none;" '+ 'marginheight="0"><img src="'+imgLink+'" border="0" '+ ' alt="'+Title+'" title="'+Title+'" /></bo'+ 'dy></ht'+'ml>');
    close();
  }
  resId=setInterval('imgResize()',100);
  return false
}

function imgResize() {
  var w=imgWndw.document.images[0].width;
  if (w>screen.availWidth) w=screen.availWidth;
  var h=imgWndw.document.images[0].height;
  if (h>screen.availHeight) h=screen.availHeight;
  if (w>50 && h>50) {
    var ww=(imgWndw.innerWidth)?imgWndw.innerWidth:((document.body)? imgWndw.document.body.clientWidth:null);
    var wh=(imgWndw.innerHeight)?imgWndw.innerHeight:((document.body)? imgWndw.document.body.clientHeight:null);
    if (ww && wh) {imgWndw.resizeBy(w-ww,h-wh);
    var sw=(document.body.clientWidth-w)/2;
    var sh=(document.body.clientHeight-h)/2;
    if (sh<0) sh=0; if (sw<0) sw=0;
    imgWndw.moveTo(sw,sh);
    }
    imgWndw.focus();
    clearInterval(resId)
  }
}