var ie=document.all;
var ns6=document.getElementById&&!document.all;

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

function enlarge(which, e, position, imgwidth, imgheight) {
  if (ie||ns6) {
    crossobj=document.getElementById? document.getElementById("showimage") : document.all.showimage;
    if (position=="center") {
      pgyoffset=ns6? parseInt(pageYOffset) : parseInt(ietruebody().scrollTop);
      horzpos=ns6? pageXOffset+window.innerWidth/2-imgwidth/2 : ietruebody().scrollLeft+ietruebody().clientWidth/2-imgwidth/2;
      vertpos=ns6? pgyoffset+window.innerHeight/2-imgheight/2 : pgyoffset+ietruebody().clientHeight/2-imgheight/2;
      if (window.opera && window.innerHeight) //compensate for Opera toolbar
      vertpos=pgyoffset+window.innerHeight/2-imgheight/2;
      vertpos=Math.max(pgyoffset, vertpos);
    } else {
      var horzpos=ns6? pageXOffset+e.clientX : ietruebody().scrollLeft+event.clientX;
      var vertpos=ns6? pageYOffset+e.clientY : ietruebody().scrollTop+event.clientY;
    }

    crossobj.style.left=horzpos+"px";
    crossobj.style.top=vertpos+"px";
    crossobj.innerHTML='<div align="center" id="head"><b>Πανέμορφη Ελλάδα!</b></div><div align="right" id="dragbar"><span id="closetext" onClick="closepreview()">Κλείσιμο </span> </div><img src="'+which+'">'
    crossobj.style.visibility="visible";
    return false;
  } else { //if NOT IE 4+ or NS 6+, simply display image in full browser window
    return true;
  }
}

function closepreview(){
  crossobj.style.visibility="hidden"
}

function drag_drop(e) {
  if (ie&&dragapproved) {
    crossobj.style.left=tempx+event.clientX-offsetx+"px"
    crossobj.style.top=tempy+event.clientY-offsety+"px"
  } else if (ns6&&dragapproved) {
    crossobj.style.left=tempx+e.clientX-offsetx+"px"
    crossobj.style.top=tempy+e.clientY-offsety+"px"
  }
  return false;
}

function initializedrag(e){
  if (ie&&event.srcElement.id == "dragbar" || ns6&&e.target.id == "dragbar") {
    offsetx=ie? event.clientX : e.clientX;
    offsety=ie? event.clientY : e.clientY;
    tempx=parseInt(crossobj.style.left);
    tempy=parseInt(crossobj.style.top);
    dragapproved=true;
    document.onmousemove=drag_drop;
  }
}

document.onmousedown=initializedrag;
document.onmouseup=new Function("dragapproved=false");