diff --git a/application/cmdbabstract.class.inc.php b/application/cmdbabstract.class.inc.php
index 5eee4f917..a4fbeb3f9 100644
--- a/application/cmdbabstract.class.inc.php
+++ b/application/cmdbabstract.class.inc.php
@@ -883,7 +883,9 @@ EOF
 			$sDisplayList = json_encode($aList);
 			$sCssCount = isset($aExtraParams['cssCount']) ? ", cssCount: '{$aExtraParams['cssCount']}'" : '';
 			$iPageSize = MetaModel::GetConfig()->GetMinDisplayLimit();
-			$oPage->add_ready_script("$('#{$iListId} table.listResults').tablesorter( { $sHeaders widgets: ['myZebra', 'truncatedList']} ).tablesorterPager({container: $('#pager{$iListId}'), totalRows:$iCount, size: $iPageSize, filter: '$sFilter', extra_params: '$sExtraParams', select_mode: '$sSelectMode', displayKey: $sDisplayKey, displayList: $sDisplayList $sCssCount});\n");
+			$oSet->ApplyParameters();
+			$sOQL = addslashes($oSet->GetFilter()->serialize());
+			$oPage->add_ready_script("$('#{$iListId} table.listResults').tablesorter( { $sHeaders widgets: ['myZebra', 'truncatedList']} ).tablesorterPager({container: $('#pager{$iListId}'), totalRows:$iCount, size: $iPageSize, filter: '$sOQL', extra_params: '$sExtraParams', select_mode: '$sSelectMode', displayKey: $sDisplayKey, displayList: $sDisplayList $sCssCount});\n");
 		}
 		else
 		{
diff --git a/application/ui.extkeywidget.class.inc.php b/application/ui.extkeywidget.class.inc.php
index 624903882..0a4682876 100644
--- a/application/ui.extkeywidget.class.inc.php
+++ b/application/ui.extkeywidget.class.inc.php
@@ -319,7 +319,7 @@ EOF
 		try
 		{
 			$oFilter = DBObjectSearch::FromOQL($sFilter);
-			$oBlock = new DisplayBlock($oFilter, 'list', false);
+			$oBlock = new DisplayBlock($oFilter, 'list', false, array('query_params' => array('this' => $oObj)));
 			$oBlock->Display($oP, $this->iId.'_results', array('this' => $oObj, 'cssCount'=> '#count_'.$this->iId, 'menu' => false, 'selection_mode' => true, 'selection_type' => 'single')); // Don't display the 'Actions' menu on the results
 		}
 		catch(MissingQueryArgument $e)
@@ -328,8 +328,8 @@ EOF
 			// TODO check if we can improve this behavior...
 			$sOQL = 'SELECT '.$sRemoteClass;
 			$oFilter = DBObjectSearch::FromOQL($sOQL);
-			$oBlock = new DisplayBlock($oFilter, 'list', false);
-			$oBlock->Display($oP, $this->iId.'_results', array('cssCount'=> '#count_'.$this->iId, 'menu' => false, 'selection_mode' => true, 'selection_type' => 'single')); // Don't display the 'Actions' menu on the results
+			//$oBlock = new DisplayBlock($oFilter, 'list', false);
+			//$oBlock->Display($oP, $this->iId.'_results', array('cssCount'=> '#count_'.$this->iId, 'menu' => false, 'selection_mode' => true, 'selection_type' => 'single')); // Don't display the 'Actions' menu on the results
 		}
 	}
 	
diff --git a/core/dbobjectsearch.class.php b/core/dbobjectsearch.class.php
index 35a19c00d..28a8872ab 100644
--- a/core/dbobjectsearch.class.php
+++ b/core/dbobjectsearch.class.php
@@ -765,6 +765,15 @@ class DBObjectSearch
 		return $this->m_oSearchCondition->Render($this->m_aParams, false);
 	}
 
+	/**
+	 * Turn the parameters (:xxx) into scalar values in order to easily
+	 * serialize a search
+	 */
+	public function ApplyParameters($aArgs)
+	{
+		return $this->m_oSearchCondition->ApplyParameters(array_merge($this->m_aParams, $aArgs));
+	}
+	
 	public function serialize($bDevelopParams = false, $aContextParams = null)
 	{
 		$sOql = $this->ToOql($bDevelopParams, $aContextParams);
diff --git a/core/dbobjectset.class.php b/core/dbobjectset.class.php
index 43b3c1e6d..8953cfa56 100644
--- a/core/dbobjectset.class.php
+++ b/core/dbobjectset.class.php
@@ -694,22 +694,9 @@ class DBObjectSet
 	 */
 	public function ListConstantFields()
 	{
-		$aScalarArgs = array();
-		foreach($this->m_aArgs as $sArgName => $value)
-		{
-			if (MetaModel::IsValidObject($value))
-			{
-				$aScalarArgs = array_merge($aScalarArgs, $value->ToArgs($sArgName));
-			}
-			else
-			{
-				$aScalarArgs[$sArgName] = (string) $value;
-			}
-		}
-		$aScalarArgs['current_contact_id'] = UserRights::GetContactId();
-		
+		$aScalarArgs = $this->ExpandArgs();
 		$aConst = $this->m_oFilter->ListConstantFields();
-		
+				
 		foreach($aConst as $sClassAlias => $aVals)
 		{
 			foreach($aVals as $sCode => $oExpr)
@@ -726,6 +713,30 @@ class DBObjectSet
 		}
 		return $aConst;		
 	}
+	
+	protected function ExpandArgs($aArgs)
+	{
+		$aScalarArgs = array();
+		foreach($this->m_aArgs as $sArgName => $value)
+		{
+			if (MetaModel::IsValidObject($value))
+			{
+				$aScalarArgs = array_merge($aScalarArgs, $value->ToArgs($sArgName));
+			}
+			else
+			{
+				$aScalarArgs[$sArgName] = (string) $value;
+			}
+		}
+		$aScalarArgs['current_contact_id'] = UserRights::GetContactId();
+		return $aScalarArgs;		
+	}
+	
+	public function ApplyParameters()
+	{
+		$aScalarArgs = $this->ExpandArgs();
+		$this->m_oFilter->ApplyParameters($aScalarArgs);
+	}
 }
 
 /**
diff --git a/core/expression.class.inc.php b/core/expression.class.inc.php
index ee07e2565..ad2590ca9 100644
--- a/core/expression.class.inc.php
+++ b/core/expression.class.inc.php
@@ -36,6 +36,8 @@ abstract class Expression
 	// recursive rendering (aArgs used as input by default, or used as output if bRetrofitParams set to True
 	abstract public function Render(&$aArgs = null, $bRetrofitParams = false);
 
+	abstract public function ApplyParameters($aArgs);
+	
 	// recursively builds an array of class => fieldname
 	abstract public function ListRequiredFields();
 
@@ -111,6 +113,10 @@ class SQLExpression extends Expression
 		return $this->m_sSQL;
 	}
 
+	public function ApplyParameters($aArgs)
+	{
+	}
+	
 	public function GetUnresolvedFields($sAlias, &$aUnresolved)
 	{
 	}
@@ -200,7 +206,27 @@ class BinaryExpression extends Expression
 		$sRight = $this->GetRightExpr()->Render($aArgs, $bRetrofitParams);
 		return "($sLeft $sOperator $sRight)";
 	}
-
+	
+	public function ApplyParameters($aArgs)
+	{
+		if ($this->m_oLeftExpr instanceof VariableExpression)
+		{
+			$this->m_oLeftExpr = $this->m_oLeftExpr->GetAsScalar($aArgs);
+		}
+		else //if ($this->m_oLeftExpr instanceof Expression)
+		{
+			$this->m_oLeftExpr->ApplyParameters($aArgs);
+		}
+		if ($this->m_oRightExpr instanceof VariableExpression)
+		{
+			$this->m_oRightExpr = $this->m_oRightExpr->GetAsScalar($aArgs);
+		}
+		else //if ($this->m_oRightExpr instanceof Expression)
+		{
+			$this->m_oRightExpr->ApplyParameters($aArgs);
+		}
+	}
+	
 	public function GetUnresolvedFields($sAlias, &$aUnresolved)
 	{
 		$this->GetLeftExpr()->GetUnresolvedFields($sAlias, $aUnresolved);
@@ -247,6 +273,14 @@ class BinaryExpression extends Expression
 			{
 				$aResult[$this->m_oRightExpr->GetParent()][$this->m_oRightExpr->GetName()] = $this->m_oLeftExpr;
 			}
+			else
+			{
+				$aResult = array_merge($this->m_oRightExpr->ListConstantFields(), $this->m_oLeftExpr->ListConstantFields()) ;
+			}
+		}
+		else
+		{
+			$aResult = array_merge($this->m_oRightExpr->ListConstantFields(), $this->m_oLeftExpr->ListConstantFields()) ;
 		}
 		return $aResult;
 	}
@@ -285,6 +319,10 @@ class UnaryExpression extends Expression
 		return CMDBSource::Quote($this->m_value);
 	}
 
+	public function ApplyParameters($aArgs)
+	{
+	}
+	
 	public function GetUnresolvedFields($sAlias, &$aUnresolved)
 	{
 	}
@@ -490,6 +528,20 @@ class VariableExpression extends UnaryExpression
 			$this->m_sName = $sNewName;
 		}
 	}
+	
+	public function GetAsScalar($aArgs)
+	{
+		$value = '';
+		if (array_key_exists($this->m_sName, $aArgs))
+		{
+			$value = $aArgs[$this->m_sName];
+		}
+		else
+		{
+			throw new MissingQueryArgument('Missing query argument', array('expecting'=>$this->m_sName, 'available'=>array_keys($aArgs)));
+		}
+		return new ScalarExpression($value);
+	}
 }
 
 // Temporary, until we implement functions and expression casting!
@@ -535,6 +587,22 @@ class ListExpression extends Expression
 		return '('.implode(', ', $aRes).')';
 	}
 
+	public function ApplyParameters($aArgs)
+	{
+		$aRes = array();
+		foreach ($this->m_aExpressions as $idx => $oExpr)
+		{
+			if ($oExpr instanceof VariableExpression)
+			{
+				$this->m_aExpressions[$idx] = $oExpr->GetAsScalar();
+			}
+			else
+			{
+				$oExpr->ApplyParameters($aArgs);
+			}
+		}
+	}
+	
 	public function GetUnresolvedFields($sAlias, &$aUnresolved)
 	{
 		foreach ($this->m_aExpressions as $oExpr)
@@ -622,6 +690,22 @@ class FunctionExpression extends Expression
 		return $this->m_sVerb.'('.implode(', ', $aRes).')';
 	}
 
+	public function ApplyParameters($aArgs)
+	{
+		$aRes = array();
+		foreach ($this->m_aArgs as $idx => $oExpr)
+		{
+			if ($oExpr instanceof VariableExpression)
+			{
+				$this->m_aArgs[$idx] = $oExpr->GetAsScalar($aArgs);
+			}
+			else
+			{
+				$oExpr->ApplyParameters($aArgs);
+			}
+		}
+	}
+
 	public function GetUnresolvedFields($sAlias, &$aUnresolved)
 	{
 		foreach ($this->m_aArgs as $oExpr)
@@ -702,6 +786,18 @@ class IntervalExpression extends Expression
 		return 'INTERVAL '.$this->m_oValue->Render($aArgs, $bRetrofitParams).' '.$this->m_sUnit;
 	}
 
+	public function ApplyParameters($aArgs)
+	{
+		if ($this->m_oValue instanceof VariableExpression)
+		{
+			$this->m_oValue = $this->m_oValue->GetAsScalar($aArgs);
+		}
+		else
+		{
+			$this->m_oValue->ApplyParameters($aArgs);
+		}
+	}
+		
 	public function GetUnresolvedFields($sAlias, &$aUnresolved)
 	{
 		$this->m_oValue->GetUnresolvedFields($sAlias, $aUnresolved);
@@ -761,6 +857,22 @@ class CharConcatExpression extends Expression
 		return "CAST(CONCAT(".implode(', ', $aRes).") AS CHAR)";
 	}
 
+	public function ApplyParameters($aArgs)
+	{
+		$aRes = array();
+		foreach ($this->m_aExpressions as $idx => $oExpr)
+		{
+			if ($oExpr instanceof VariableExpression)
+			{
+				$this->m_aExpressions[$idx] = $oExpr->GetAsScalar();
+			}
+			else
+			{
+				$this->m_aExpressions->ApplyParameters($aArgs);
+			}
+		}
+	}
+
 	public function GetUnresolvedFields($sAlias, &$aUnresolved)
 	{
 		foreach ($this->m_aExpressions as $oExpr)