добавил функцию для очистки Filters

git-svn-id: svn://192.168.3.15/activex/AVS/Sources/TeamlabOffice/trunk/OfficeWeb@64110 954022d7-b5bf-4e40-9824-e11837661b57

Excel/model/WorkbookElems.js

@@ -4781,6 +4781,13 @@ Filters.prototype._sortDate = function()
 	}
 };
 
+Filters.prototype.clean = function()
+{
+	this.Values = {};
+	this.Dates = [];
+	this.Blank = null;
+};
+	
 /** @constructor */
 function Filter() {
 	this.Val = null;