function popup(filename, width, height, windowname, alt, url){
if(width > screen.width){
height = height * screen.width / width;
width = screen.width;
}else if(height > screen.height){
width = width * screen.height / height;
height = screen.height;
}
if (navigator.userAgent.indexOf("SV1") == -1 && navigator.userAgent.indexOf("7.0") == -1 && navigator.userAgent.indexOf("8.0") == -1) {
windowheight = parseInt(height) +28;
width_bar = width + 25;
var win=window.open("", windowname, "width=" + width_bar + ",height=" + windowheight +",scrollbars=yes");
win.document.open("text/html");
win.document.write('');
win.document.write('');
win.document.write('');
win.document.write('' + alt + '');
win.document.write('');
if(url == ""){
win.document.write('
');
}else{
win.document.write('');
}
win.document.write('');
win.document.write('');
win.document.write('');
win.document.close();
if(navigator.userAgent.indexOf("Mac")!=-1){
windowheight += 35;
win.resizeTo(width_bar, windowheight);
}
}else{
wOBJ = window.createPopup();
popOBJ = wOBJ.document.body;
popOBJ.document.body.style.backgroundColor = "white";
popOBJ.innerHTML = "![](" + filename + ")
";
popOBJ.document.body.style.overflowY = "AUTO";
popOBJ.style.border = "solid blue 2px";
wOBJ.show(30,30,width,parseInt(height)+20,document.body);
}
}
