contectmenu is not displayed out of the screen

webinterface/gui/gui.js

@@ -88,6 +88,9 @@ function gContextmenuCreate(title, clientInnerHTML) {
 	cm.style.top = getMouseY();
 	cm.style.left = getMouseX();
 
+    if (parseInt(cm.style.left) + 150 > window.innerWidth) cm.style.left =  window.innerWidth - 150;
+    if (parseInt(cm.style.top) + 400 > window.innerHeight) cm.style.top =  window.innerHeight - 400;
+    
 	return cm;
 };