diff --git a/html/js/compute_direct.js b/html/js/compute_direct.js
new file mode 100644
index 000000000..963179418
--- /dev/null
+++ b/html/js/compute_direct.js
@@ -0,0 +1,75 @@
+/*
+ *   This file is part of PhpCompta.
+ *
+ *   PhpCompta is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   PhpCompta 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
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with PhpCompta; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+function checkTotalDirect() {
+  var ie4=false;
+  if ( document.all ) { 
+    ie4=true;
+  }// Ajouter getElementById par document.all[str]
+  var total_deb=0.0;
+  var total_cred=0.0;
+
+
+  var nb_item_id=document.getElementById('nb');
+  if ( ! nb_item_id ) 
+	{return; }
+
+  var nb_item=nb_item_id.value;
+  
+  for (var i=0;i <nb_item ;i++) {
+    var doc_amount=document.getElementById("amount"+i);
+	if ( ! doc_amount ) { return;}
+    var side=document.getElementsByName("ck"+i);
+	if ( ! side ) { return;}
+    var amount=parseFloat(doc_amount.value);
+  
+    if ( isNaN(amount) == true)  {
+      amount=0.0;
+    }
+    for (var e=0;e<side.length;e++) {
+      if ( side[e].checked == true) {
+	//	alert('checked !!! '+side[e].value);
+	total_deb+=amount;
+      }
+      else {
+	total_cred+=amount;
+      }
+    }
+
+    //    alert("amount ="+i+"="+amount+" cred/deb = "+deb+"total d/b"+total_deb+"/"+total_cred);
+  }
+
+
+
+  r_total_cred=Math.round(total_cred*100)/100;
+  r_total_deb=Math.round(total_deb*100)/100;
+  document.getElementById('totalDeb').innerHTML=r_total_deb;
+  document.getElementById('totalCred').innerHTML=r_total_cred;
+
+  if ( r_total_deb != r_total_cred ) {
+    document.getElementById("totalDiff").style.color="red";
+    document.getElementById("totalDiff").style.fontWeight="bold";
+    document.getElementById("totalDiff").innerHTML="Différence";
+    diff=total_deb-total_cred;
+    diff=Math.round(diff*100)/100;
+    document.getElementById("totalDiff").innerHTML=diff
+    
+  } else {
+    document.getElementById("totalDiff").innerHTML="0.0";
+  }
+}
+