function popup(url, name, w, h){
var xpos = (screen.width - w)/2;
var ypos = (screen.height - h)/2;
pos = ',screenX=' + xpos;
pos += ',screenY=' + ypos;
pos += ',left=' + xpos;
pos += ',top=' + ypos;
features = 'width=' + w +',height=' + h + pos;
window.open(url, name, features);
}

function moveAndsize(xsize, ysize, x, y) {
window.resizeTo(xsize,ysize);
window.moveTo(x,y);
window.scrollbars.visible=false;
}