JQuery press enter to log on without writing

JQuery press enter login won't write down younger brother wants to do a press enter login effect, but it always doesn't work. please help me to see where the problem is. thank you.

Script $ (document). keyup (function (event) {if (event. keyCode = 13) {alert ("1") ;}); script

 

Reply to discussion (solution)

$ (Function () {$ (document ). keyup (function (event) {if (event. keyCode = 13) {alert ("1 ");}});});

This is better

$ (Function () {$ ("# loginform "). keyup (function (event) {if (event. keyCode = 13) {alert ("1 ");}});});

If your alert (1) pops up, the following code:

$ ("# Loginform"). submit ();