function testKeyCode(e) {
                 
                    var keycode;
                    if (window.event) keycode = window.event.keyCode;
                    else if (e) keycode = e.which;
                    var e = e || window.event;
                    if(keycode==49 && e.altKey)
                     {
                       window.location='index.php';
                    }
                    else if(keycode==50 && e.altKey)
                     {
                       window.location='Company_History.php';
                    }
                     else if(keycode==51 && e.altKey)
                     {
                       window.location='services.php';
                    }
                     else if(keycode==52 && e.altKey)
                     {
                       window.location='property_search.php';
                    }
                      else if(keycode==53 && e.altKey)
                     {
                       window.location='information.php';
                    }
                     else if(keycode==54 && e.altKey)
                     {
                       window.location='register_new.php';
                    }
                       else if(keycode==55 && e.altKey)
                     {
                       window.location='contact.php';
                    }
                      else if(keycode==56 && e.altKey)
                     {
                       window.location='client_login.php';
                    }
                   
                  }
                  document.onkeydown = testKeyCode;