can we write same variable names in different scripts in jsp

Question

 can we write same variable names in different scripts in javascript?

Like below 

 

<script type="text/javascript">

$(document).ready(function () {

var userCookie = getCookie('loggedInUser');

});

</script>

 

<script type="text/javascript">

$(document).ready(function () {

var userCookie = getCookie('loggedInUser');

}); 

</script>