function viewPic(img){
picfile = new Image(); picfile.src =(img); fileCheck(img); }
function fileCheck(img){
if( (picfile.width!=0) && (picfile.height!=0) ){ makeWindow(img); }else{
funzione="fileCheck('"+img+"')"; intervallo=setTimeout(funzione,50); }
}
function makeWindow(img){
ht = picfile.height;
wd = picfile.width;
var args= "height=" + ht + ",innerHeight=" + ht;
args += ",width=" + wd + ",innerWidth=" + wd;
if (window.screen){
var avht = screen.availHeight; var avwd = screen.availWidth;
var xcen = (avwd - wd) / 2; var ycen = (avht - ht) / 2;
args += ",left=" + xcen + ",screenX=" + xcen;
args += ",top=" + ycen + ",screenY=" + ycen + ",resizable=yes";
}
popwin=window.open("","_blank",args)
popwin.document.open();
popwin.document.write(''+img+'')
popwin.document.close()
}