popup al centro dello schermo

[stiffa]

//centra la popUp in base alle dimensioni dello schermo
function popupCentrata(width,height) {
    var dim         = new Array();
    var w             = width;
    var h             = height;
    dim['left']     = Math.floor((screen.width-w)/2);
    dim['top']         = Math.floor((screen.height-h)/2);
    dim['width']     = w;
    dim['height']     = h;
    return dim;
}



function openPopUp(popwidth,popheight,page,popname){
    var screendim = popupCentrata(popwidth,popheight);
    var l = screendim['left'];
    var t = screendim['top'];
    var w = screendim['width'];
    var h = screendim['height'];
    finestra = window.open(page,popname,"width="+w+",height="+h+",left="+l+",top="+t+",toolbar=no, location=no,statusbar=no,menubar=no,scrollbars=no,resizable=no");
    return finestra;
}


openPopUp(300,200,"pagina.php","namePop");