/* DEPENDENCIES
*  HashTable.js
*/
		var rowAdditionSequence = 0;
		 
		function addFilter(group, filterArray) {
			var theTable = document.getElementById(group);
			document.getElementById(group + "_size").value 
				= parseInt(document.getElementById(group + "_size").value) + 1;
			if(noneSelected.get(group)){
				theTable.tBodies[0].deleteRow(1);
				noneSelected.remove(group)
				noneSelected.put(group,false);
			}
			var row = document.createElement('tr');
			row.id = "tr_" + group + "_" + rowAdditionSequence;
			rowAdditionSequence++;
			theTable.tBodies[0].appendChild(row);
			
			for (var i = 0; i < filterArray.length; i++){
				addTd(theTable, filterArray[i], i);
			}
			addRemoveButton(group,theTable,row.id);
			window.focus();
		}	
		
		function addTd(theTable, filterId, tdPosition){
			var td = document.createElement('td');
			var oFilter = document.getElementById(filterId);
			theTable.tBodies[0].rows[theTable.tBodies[0].rows.length - 1].appendChild(td);
			theTable.tBodies[0].rows[theTable.tBodies[0].rows.length - 1].cells[tdPosition].innerHTML = 		 		
				"<input type='hidden' name='" + filterId + "_" + (theTable.tBodies[0].rows.length - 2) 
					+ "' value='" + oFilter.options[oFilter.selectedIndex].value +
				"'/>" + oFilter.options[oFilter.selectedIndex].text;	
		}
		
		function addRemoveButton(group,theTable,rowId){
			var td = document.createElement('td');
			theTable.tBodies[0].rows[theTable.tBodies[0].rows.length - 1].appendChild(td); 
			td.align = "right";
			td.innerHTML =
				"<span width=\"80px\" style=\"width:80px\" class=\"removeLink\">"
				+	"<a href=\"javaScript:remove('" + group + "'"
					+ ",'" + rowId + "');\">remove</a>"
				+ "</span>";
		}
		
		function remove(group, rowId){
			var theTable = document.getElementById(group); 
			var row = document.getElementById(rowId);
			
			theTable.tBodies[0].deleteRow(row.sectionRowIndex);
			renameInputs(theTable);
			document.getElementById(group + "_size").value -= 1;
			if(theTable.tBodies[0].rows.length == 1){
				addNoneSelectedRow(theTable)
				noneSelected.remove(group);
				noneSelected.put(group,true);
			}
		} 
	
		function removeAllFilters(group){ 
			var theTable = document.getElementById(group);
			document.getElementById(group + "_size").value = 0;
			while (theTable.tBodies[0].rows.length > 1){
				theTable.tBodies[0].deleteRow(1);
			}
			addNoneSelectedRow(theTable)
			noneSelected.remove(group);
			noneSelected.put(group,true);
		}			
		
		function addNoneSelectedRow(theTable){
			theTable.tBodies[0].appendChild(document.createElement('tr'));		
			for (var i=0; i < (theTable.tBodies[0].rows[0].cells.length - 1); i++){
				addNoneSelectedTd(theTable);			
			}
			var td2 = document.createElement('td');
			td2.innerHTML = "&nbsp;";
			theTable.tBodies[0].rows[1].appendChild(td2); 
		}
		
		function addNoneSelectedTd(theTable){
			var td = document.createElement('td');
			td.innerHTML = "All";
			theTable.tBodies[0].rows[1].appendChild(td);  
		}
		
		// loops through the table and reassigns the hidden input names based on row
		function renameInputs(theTable){
			for (var rowNo = 1; rowNo < theTable.tBodies[0].rows.length; rowNo++){
				for (var cellNo = 0; cellNo < theTable.tBodies[0].rows[rowNo].cells.length - 1; cellNo++){
					var oHiddenInput = theTable.tBodies[0].rows[rowNo].cells[cellNo].firstChild;
					oHiddenInput.name = oHiddenInput.name.substring(0,oHiddenInput.name.length - 1) + (rowNo - 1); 
				}
			}			
		}