// JavaScript Document

function isEmpty(passedVal) {
      if (passedVal == "") {
         return false
       }
return true
}


function validForm(passForm) {
     if (!isEmpty(document.forms[0].username.value)) {
         alert("Please enter your username'!");
        document.forms[0].username.focus();
         return false;
       }
	        if (!isEmpty(document.forms[0].password.value)) {
         alert("Please enter your password'!");
        document.forms[0].password.focus();
         return false;
       }
   	       
}