/**
* create a popup window which fits image size
* @param src string url to image to be poped up.
*/
function openImageSizedWindow(src)
{
var i = new Image();
i.src = src;
var w = i.width;
var h = i.height;
if (!w){w = screen.availWidth;}
if (!h){h = screen.availHeight;}
var pop_win = window.open("", "_blank", "width="+w+",height="+h+",scrollbars=yes,resizable=yes");
pop_win.window.document.open();
pop_win.window.document.write(''+i.alt+''
+''
+'
