var SPGridView_CallbackContext=null;
function SPGridView_FilterPreMenuOpen(gridViewClientId, templateClientId, menuClientId, dataFieldName, e)
{
	var gridView=document.getElementById(gridViewClientId);
	var callbackEventReference=gridView.getAttribute("callbackEventReference");
	var callbackArgumentPrefix=gridView.getAttribute("callbackArgumentPrefix");
	var postbackEventReference=gridView.getAttribute("postbackEventReference");
	var filterFieldName=gridView.getAttribute("filterFieldName");
	var filterFieldValue=gridView.getAttribute("filterFieldValue");
	var filterCurrentlyOn=false;
	if ((filterFieldName !=null) && (filterFieldName.length > 0) && (filterFieldName==dataFieldName))
	{
		filterCurrentlyOn=true;
	}
	var menuTemplate=document.getElementById(templateClientId);
	var menuLink=document.getElementById(menuClientId);
	if ((menuLink.getAttribute("suppressBubbleIfPostback") !=null) && (e !=null) && (e.srcElement !=null) && (e.srcElement.href !=null) &&
		(e.srcElement.href.substr(0, MMU_postbackPrefix.length)==MMU_postbackPrefix))
	{
		event.cancelBubble=true;
		return;
	}
	SPGridView_FixupFilterValuesFromMenuTemplate(menuTemplate, filterCurrentlyOn);
	var menuItem=CAMOpt(menuTemplate, L_Loading_Text, "null");
	menuItem.setAttribute("isFilterItem", "true");
	menuItem.setAttribute("enabled", "false");
	SPGridView_CallbackContext=new Object();
	SPGridView_CallbackContext.gridViewClientId=gridViewClientId;
	SPGridView_CallbackContext.templateClientId=templateClientId;
	SPGridView_CallbackContext.menuClientId=menuClientId;
	SPGridView_CallbackContext.dataFieldName=dataFieldName;
	callbackEventReference=callbackEventReference.replace(/__CALLBACKARGUMENT__/g, dataFieldName);
	callbackEventReference=callbackEventReference.replace(/__CALLBACKCONTEXT__/g, gridViewClientId+";"+templateClientId+";"+menuClientId+";"+dataFieldName);
	eval(callbackEventReference);
}
function SPGridView_FixupFilterValuesFromMenuTemplate(menuTemplate, filterCurrentlyOn)
{
	for (var menuChildIndex=0; menuChildIndex < menuTemplate.childNodes.length; menuChildIndex++)
	{
		var menuChild=menuTemplate.childNodes[menuChildIndex];
		if (menuChild.nodeName !="#text")
		{
			if (menuChild.getAttribute("isFilterItem")=="true")
			{
				menuTemplate.removeChild(menuChild);
				--menuChildIndex;
			}
			else if (menuChild.getAttribute("clearFilterItem")=="true")
			{
				if (filterCurrentlyOn)
				{
					menuChild.setAttribute("enabledOverride", "true");
					menuChild.setAttribute("iconSrc", "/_layouts/images/filteroff.gif");
				}
				else
				{
					menuChild.setAttribute("enabledOverride", "false");
					menuChild.setAttribute("iconSrc", "/_layouts/images/filteroffdisabled.gif");
				}
			}
		}
	}
}
function SPGridView_FilterMenuSort(sortDirection, fieldName)
{
}
function SPGridView_FilterCallbackHandler(result, context)
{
	var values=context.split(';');
	if (values.length !=4) { alert("ERROR: SPGridView_FilterCallbackHandler() - values.length !=4"); return; }
	var gridViewClientId=values[0];
	var templateClientId=values[1];
	var menuClientId=values[2];
	var dataFieldName=values[3];
	var gridView=document.getElementById(gridViewClientId);
	if (gridView==null) { alert("ERROR: SPGridView_FilterCallbackHandler() - gridView==null"); return; }
	var menuTemplate=document.getElementById(templateClientId);
	if (menuTemplate==null) { alert("ERROR: SPGridView_FilterCallbackHandler() - menuTemplate==null"); return; }
	var menu=document.getElementById(menuClientId);
	if (menu==null) { alert("ERROR: SPGridView_FilterCallbackHandler() - menu==null"); return; }
	var postbackEventReference=gridView.getAttribute("postbackEventReference");
	if ((postbackEventReference==null) || (postbackEventReference.length <=0)) { alert("ERROR: SPGridView_FilterCallbackHandler() - postbackEventReference is null or empty"); return; }
	var filterFieldName=gridView.getAttribute("filterFieldName");
	var filterFieldValue=gridView.getAttribute("filterFieldValue");
	var filterCurrentlyOn=false;
	if ((filterFieldName !=null) && (filterFieldName.length > 0) && (filterFieldName==dataFieldName))
	{
		filterCurrentlyOn=true;
	}
	SPGridView_FixupFilterValuesFromMenuTemplate(menuTemplate, filterCurrentlyOn);
	values=result.split(';');
	for (var valueIndex=0; valueIndex < values.length; valueIndex++)
	{
		var value=unescape(values[valueIndex]);
		var script=postbackEventReference.replace(/__POSTBACKARGUMENT__/g, dataFieldName+";"+value.replace(/\\/g, "\\\\").replace(/\'/g, "\\'").replace(/%/g, "%25").replace(/;/g, "%3b"));
		var newMenuItem=CAMOpt(menuTemplate, value, script);
		newMenuItem.setAttribute("isFilterItem", "true");
		if (value==filterFieldValue)
		{
			newMenuItem.setAttribute("checked", "true");
		}
	}
	HideMenu(menuTemplate);
	MMU_Open(menuTemplate, menu);
}
function SPGridView_FilterCallbackErrorHandler(result, context)
{
	alert("ERROR: SPGridView_FilterCallbackErrorHandler() was called - result="+result+", context="+context);
}
function ToggleSPGridViewGroup(link, fECB)
{
	var hdrCell=fECB ? link.parentNode.parentNode.parentNode.parentNode.parentNode : link.parentNode;
	if (hdrCell==null)
	{
		return;
	}
	var hdrRow=hdrCell.parentNode;
	if (hdrRow==null)
	{
		return;
	}
	var img=link.childNodes[0];
	if (img==null)
	{
		return;
	}
	var isExp=false;
	var value=hdrRow.getAttribute("isexp");
	if ((value==null) || ((value !=null) && (value.toLowerCase()=="true")))
	{
		isExp=true;
	}
	isExp=!isExp;
	hdrRow.setAttribute("isexp", (isExp ? "true" : "false"));
	img.src=(isExp ? "/_layouts/images/minus.gif" : "/_layouts/images/plus.gif");
	var dataRow=((hdrRow.nextSibling !=null && hdrRow.nextSibling.nodeName=="#text") ? hdrRow.nextSibling.nextSibling : hdrRow.nextSibling);
	while (dataRow !=null)
	{
		value=dataRow.getAttribute("ishdr");
		if ((value !=null) && (value.toLowerCase()=="true"))
		{
			break;
		}
		dataRow.style.display=(isExp ? "" : "none");
		dataRow=((dataRow.nextSibling !=null && dataRow.nextSibling.nodeName=="#text") ? dataRow.nextSibling.nextSibling : dataRow.nextSibling);
	}
}