diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index bade0344680..03defa19129 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -1835,11 +1835,12 @@ class Form
      *	@param  string	$filterkey      Filtre des produits
      *  @param  int		$statut         -1=Return all products, 0=Products not on sell, 1=Products on sell
      *  @param  int		$outputmode     0=HTML select string, 1=Array
+     *  @param  int     $limit          Limit of line number
      *  @return array           		Array of keys for json
      */
-    function select_produits_fournisseurs_list($socid,$selected='',$htmlname='productid',$filtertype='',$filtre='',$filterkey='',$statut=-1,$outputmode=0)
+    function select_produits_fournisseurs_list($socid,$selected='',$htmlname='productid',$filtertype='',$filtre='',$filterkey='',$statut=-1,$outputmode=0,$limit=100)
     {
-        global $langs,$conf;
+        global $langs,$conf,$db;
 
         $out='';
         $outarray=array();
@@ -1877,6 +1878,7 @@ class Form
         	$sql.=')';
         }
         $sql.= " ORDER BY pfp.ref_fourn DESC, pfp.quantity ASC";
+        $sql.= $db->plimit($limit);
 
         // Build output string
 
diff --git a/htdocs/core/lib/ajax.lib.php b/htdocs/core/lib/ajax.lib.php
index 709911faaec..f21d7d2ff02 100644
--- a/htdocs/core/lib/ajax.lib.php
+++ b/htdocs/core/lib/ajax.lib.php
@@ -173,6 +173,7 @@ function ajax_autocompleter($selected, $htmlname, $url, $urloption='', $minLengt
     						}
     						$("#search_'.$htmlname.'").trigger("change");	// To tell that input text field was modified
     					}
+    					,delay: 500
 					}).data( "autocomplete" )._renderItem = function( ul, item ) {
 						return $( "<li></li>" )
 						.data( "item.autocomplete", item )