function centerWindow6(adress) {
if (document.all)
var xMax = screen.width, yMax = screen.height;
else
if (document.layers)
var xMax = window.outerWidth, yMax = window.outerHeight;
else
var xMax = 800, yMax=350;
var xOffset = (xMax - 650)/2, yOffset = (yMax - 350)/2;
window.open(adress, "Popup", 'scrollbars=no,menubars=no,toolbars=no,resizable=no,width=650,height=350,screenX='+xOffset+',screenY='+yOffset+',top='+yOffset+',left='+xOffset+'');
}