function openJSLWindow() {
iMyWidth = (window.screen.width/100)
iMyHeight = (window.screen.height/100)
Fokus = window.open("", "JSL","height=520,width=680,resizable=no,left=" + iMyWidth + ",top=" + iMyHeight + ",screenX=" + iMyWidth + ",screenY=" + iMyHeight + ",scrollbars=yes");
Fokus.focus()
}