gtk_window_set_modal(GTK_WINDOW(widget), 1);
void		gtk_transient(GtkWidget *widget){GtkWidget *top;	assert(widgetCount);	top=widgetStack[widgetCount-1];		gtk_window_set_modal(GTK_WINDOW(widget), 1);	gtk_window_set_transient_for (GTK_WINDOW(widget),GTK_WINDOW(top));			}