function pencereAc(url,width,height) {
	url = url;
    var width = width;
    var height = height;
    var left = parseInt((screen.availWidth/2) - (width/2));
    var top = parseInt((screen.availHeight/2) - (height/2));
    var windowFeatures = "scrollbars=1 , width=" + width + ",height=" + height + ",status=0,toolbar=0,resizable=1,left=" + left + ",top=" + top + "screenX=" + left + ",screenY=" + top;
    myWindow = window.open(url, "subWind", windowFeatures);
}