NS60=(navigator.userAgent.indexOf("Netscape6/6.0")!=-1)
Opera=(navigator.userAgent.indexOf('Opera')!=-1)||(navigator.appName.indexOf('Opera')!=-1)||(window.opera)
Opera7=(Opera&&document.createElement!=null&&document.addEventListener!=null)
IE4=(document.all&&!Opera)
mac=((IE4)&&(navigator.appVersion.indexOf("Mac")!=-1))
DOM=document.documentElement&&!IE4&&!Opera
NS4=navigator.appName.indexOf("Netscape")>-1&&!DOM
mswnd=(navigator.appVersion.indexOf("Windows")!=-1||navigator.appVersion.indexOf("WinNT")!=-1)
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 + 20;
    wd = picfile.width + 20; 

    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"; 	
    }
    return window.open(img, '', args); 
}