diff --git a/htdocs/cron/card.php b/htdocs/cron/card.php
index a371069d7cf05..dce56ff54688d 100644
--- a/htdocs/cron/card.php
+++ b/htdocs/cron/card.php
@@ -380,7 +380,7 @@ function initfields()
 
 	print '<tr class="blockmethod"><td>';
 	print $langs->trans('CronArgs')."</td><td>";
-	print "<input type=\"text\" size=\"20\" name=\"params\" value=\"".$object->params."\" /> ";
+	print "<input type=\"text\" class=\"quatrevingtpercent\" name=\"params\" value=\"".$object->params."\" /> ";
 	print "</td>";
 	print "<td>";
 	print $form->textwithpicto('',$langs->trans("CronArgsHelp"),1,'help');
@@ -408,10 +408,10 @@ function initfields()
 	print '<tr><td class="fieldrequired">';
 	print $langs->trans('CronEvery')."</td>";
 	print "<td>";
-	print "<select name=\"nbfrequency\">";
-	for($i=1; $i<=60; $i++)
+	print '<select name="nbfrequency">';
+	for ($i=1; $i<=60; $i++)
 	{
-	    if (! empty($object->unitfrequency) && ($object->frequency/$object->unitfrequency) == $i)
+	    if ($object->frequency == $i)
 	    {
 	        print "<option value='".$i."' selected>".$i."</option>";
 	    }
diff --git a/htdocs/cron/class/cronjob.class.php b/htdocs/cron/class/cronjob.class.php
index d4d7f6d80c638..b7de98b0c1c0b 100644
--- a/htdocs/cron/class/cronjob.class.php
+++ b/htdocs/cron/class/cronjob.class.php
@@ -194,12 +194,12 @@ function create($user, $notrigger=0)
 		$sql.= " ".(! isset($this->md5params)?'NULL':"'".$this->db->escape($this->md5params)."'").",";
 		$sql.= " ".(! isset($this->module_name)?'NULL':"'".$this->db->escape($this->module_name)."'").",";
 		$sql.= " ".(! isset($this->priority)?'0':$this->priority).",";
-		$sql.= " ".(! isset($this->datelastrun) || dol_strlen($this->datelastrun)==0?'NULL':$this->db->idate($this->datelastrun)).",";
-		$sql.= " ".(! isset($this->datenextrun) || dol_strlen($this->datenextrun)==0?'NULL':$this->db->idate($this->datenextrun)).",";
-		$sql.= " ".(! isset($this->dateend) || dol_strlen($this->dateend)==0?'NULL':$this->db->idate($this->dateend)).",";
-		$sql.= " ".(! isset($this->datestart) || dol_strlen($this->datestart)==0?'NULL':$this->db->idate($this->datestart)).",";
+		$sql.= " ".(! isset($this->datelastrun) || dol_strlen($this->datelastrun)==0?'NULL':"'".$this->db->idate($this->datelastrun)."'").",";
+		$sql.= " ".(! isset($this->datenextrun) || dol_strlen($this->datenextrun)==0?'NULL':"'".$this->db->idate($this->datenextrun)."'").",";
+		$sql.= " ".(! isset($this->dateend) || dol_strlen($this->dateend)==0?'NULL':"'".$this->db->idate($this->dateend)."'").",";
+		$sql.= " ".(! isset($this->datestart) || dol_strlen($this->datestart)==0?'NULL':"'".$this->db->idate($this->datestart)."'").",";
 		$sql.= " ".(! isset($this->lastresult)?'NULL':"'".$this->db->escape($this->lastresult)."'").",";
-		$sql.= " ".(! isset($this->datelastresult) || dol_strlen($this->datelastresult)==0?'NULL':$this->db->idate($this->datelastresult)).",";
+		$sql.= " ".(! isset($this->datelastresult) || dol_strlen($this->datelastresult)==0?'NULL':"'".$this->db->idate($this->datelastresult)."'").",";
 		$sql.= " ".(! isset($this->lastoutput)?'NULL':"'".$this->db->escape($this->lastoutput)."'").",";
 		$sql.= " ".(! isset($this->unitfrequency)?'NULL':"'".$this->unitfrequency."'").",";
 		$sql.= " ".(! isset($this->frequency)?'0':$this->frequency).",";