Quite simple really: <input type="button" value="Open a Popup Window" onclick="window.open('https://euroburo-slovenia.com/','popUpWindow','height=500,width=400,left=100,top=100,resizable=yes,scrollbars=yes,toolbar=yes,menubar=no,location=no,directories=no, status=yes');"> HTML: First it creates a button with "Open a Popup Window" text When clicked, rhe new window loads an external page from euroburo-slovenia.com. It opens a window 500px wide and 400px high, 100px removed from left and top edges of screen. The pop-up windoe is resizable, has scrollbars, toolbars no menubar, etc...