Index: ssts-web/src/main/webapp/logon.jsp
===================================================================
diff -u -r41222 -r41261
--- ssts-web/src/main/webapp/logon.jsp	(.../logon.jsp)	(revision 41222)
+++ ssts-web/src/main/webapp/logon.jsp	(.../logon.jsp)	(revision 41261)
@@ -865,6 +865,10 @@
 function next(){
 	var hiddenUserCode = document.getElementById('hiddenUserCode').value;
 	var userCode = document.getElementById('userCode').value;
+	if(userCode == ''){
+		alert('验证码不能为空');
+		return;
+	}
 	if(hiddenUserCode !== userCode){
 		alert('验证码不正确');
 		return;