function openPOP(sayfa,url,scroll,genislik,yukseklik)
 {

 	sayfa = window.open(url,sayfa,"toolbar=0, location=0, directories=0, status=0, menuBar=0, scrollBars="+scroll+", resizable=0, width="+genislik+", height="+yukseklik);

 }

 function openProductWindow(url) {
     var width  = 556; // 500 + (12 * 2) + (16 * 2) 
     var height = 386; // 500 + (12 * 2) + 30 + (16 * 2) 
     var left   = (screen.width  - width) / 2;
     var top    = (screen.height - height) / 2;
     var params = 'width=' + width;
     params += ', height=' + height;
     params += ', top=' + top; 
     params += ', left=' + left;
     params += ', directories=no';
     params += ', location=no';
     params += ', menubar=no';
     params += ', resizable=no';
     params += ', scrollbars=no';
     params += ', status=no';
     params += ', toolbar=no';
    
    productWindow = window.open(url,'productWindow', params);
    
    if (window.focus) {
        productWindow.focus();
    }
    
    return false;
}