Fixed getElementById method being called on incorrect object causing looping failure.

config.yaml

@@ -18,7 +18,7 @@ beef:
     # Used by both the RESTful API and the Admin interface
     credentials:
         user:   "beef"
-        passwd: "beef"
+        passwd: "beef1"
 
     # Interface / IP restrictions
     restrictions:

modules/social_engineering/pretty_theft/command.js

@@ -93,9 +93,9 @@ beef.execute(function() {
 			$j('#popup').remove();
 			$j('#darkenScreenObject').remove();
 
-		}else if((uname1.length == 0 || pass1.length == 0) && valcheck == "true"){
+		} else if((uname1.length == 0 || pass1.length == 0) && valcheck == "true") {
 			// If user has not entered any data, reset button
-			document.body.lastChild.getElementById("buttonpress").value = "false";
+			document.getElementById("buttonpress").value = "false";
 			alert("Please enter a valid username and password.");		
 		}
 	}