Javascript support to direct allocations in supplier/customer payments.

diff --git a/js/payalloc.js b/js/payalloc.js
new file mode 100644 (file)
index 0000000..7bdd991
--- /dev/null
+++ b/js/payalloc.js
@@ -0,0 +1,64 @@
+/**********************************************************************
+    Copyright (C) FrontAccounting, LLC.
+       Released under the terms of the GNU General Public License, GPL, 
+       as published by the Free Software Foundation, either version 3 
+       of the License, or (at your option) any later version.
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
+    See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
+***********************************************************************/
+function focus_alloc(i) {
+    save_focus(i);
+       i.setAttribute('_last', get_amount(i.name));
+}
+
+function blur_alloc(i) {
+       var change = get_amount(i.name);
+               price_format(i.name, change, user.pdec);                
+               if (i.name != 'amount' && i.name != 'charge') {
+                       if (change<0) change = 0;
+                       change = change-i.getAttribute('_last');
+                       if (i.name == 'discount') change = -change;
+
+                       var total = get_amount('amount')+change;
+                       price_format('amount', total, user.pdec, 0);
+               }
+}
+
+function allocate_all(doc) {
+       var amount = get_amount('amount'+doc);
+       var unallocated = get_amount('un_allocated'+doc);
+       var total = get_amount('amount');
+       var left = 0;
+       total -=  (amount-unallocated);
+       left -= (amount-unallocated);
+       amount = unallocated;
+       if(left<0) {
+               total  += left;
+               amount += left;
+               left = 0;
+       }
+       price_format('amount'+doc, amount, user.pdec);
+       price_format('amount', total, user.pdec);
+}
+
+function allocate_none(doc) {
+       amount = get_amount('amount'+doc);
+       total = get_amount('amount');
+       price_format('amount'+doc, 0, user.pdec);
+       price_format('amount', total-amount, user.pdec);
+}
+
+var allocations = {
+       '.amount': function(e) {
+               e.onblur = function() {
+                       blur_alloc(this);
+                 };
+               e.onfocus = function() {
+                       focus_alloc(this);
+               };
+       }
+}
+
+Behaviour.register(allocations);