1 files changed, 4 insertions, 9 deletions

diff --git a/linden/indra/newview/llgivemoney.cpp b/linden/indra/newview/llgivemoney.cpp
index 3722682..e89ab3d 100644
--- a/linden/indra/newview/llgivemoney.cpp
+++ b/linden/indra/newview/llgivemoney.cpp
@@ -155,7 +155,7 @@ LLFloaterPay::LLFloaterPay(const std::string& name,
         
         childSetKeystrokeCallback("amount", &LLFloaterPay::onKeystroke, this);
         childSetText("amount", last_amount);
-        childSetPrevalidate("amount", LLLineEditor::prevalidatePositiveS32);
+        childSetPrevalidate("amount", LLLineEditor::prevalidateNonNegativeS32);
 
         info = new LLGiveMoneyInfo(this, 0);
         mCallbackData.push_back(info);
@@ -422,14 +422,9 @@ void LLFloaterPay::onKeystroke(LLLineEditor*, void* data)
         LLFloaterPay* self = reinterpret_cast<LLFloaterPay*>(data);
         if(self)
         {
-                if (!self->childGetText("amount").empty())
-                {
-                        self->childSetEnabled("pay btn", TRUE);
-                }
-                else
-                {
-                        self->childSetEnabled("pay btn", FALSE);
-                }
+                // enable the Pay button when amount is non-empty and positive, disable otherwise
+                LLString amtstr = self->childGetText("amount");
+                self->childSetEnabled("pay btn", !amtstr.empty() && atoi(amtstr.c_str()) > 0);
         }
 }