function TreeTableManager() {
}
TreeTableManager.prototype.init = function() {
 var tableRows = document.getElementsByTagName("tr");
 for (var i=0;i<tableRows.length;i++) {
 // we only care about tr elements with these classnames
 if (tableRows[i].className.indexOf == "treeTableTitleRow"!=-1) {
 var tree = tableRows[i];
 var childDivs = tree.getElementsByTagName("DIV");
 var treeControl = null;
 for (var j=0;j<childDivs.length;j++) {
 if (
 (childDivs[j].nodeType==1) && (childDivs[j].className =="treeControl")) treeControl = childDivs[j];
 }
 var additionalOnClick;
 if (treeControl) {
 if (treeControl.onclick) {
 additionalOnClick = treeControl.onclick;
 eval("treeControl.onclick = function(mozEvent) {var hardCodedFunction = "+treeControl.onclick+" ;ourTreeTableManager.toggleTableTree(mozEvent,this);hardCodedFunction();};");
 }
 else {
 eval("treeControl.onclick = function(mozEvent) {ourTreeTableManager.toggleTableTree(mozEvent,this);};");
 }
 }
 }
 }
}
// uses the classnames to hold open closed state.
TreeTableManager.prototype.toggleTableTree = function(mozEvent,treeControl) {
 var titleRowObject = treeControl;
 while((titleRowObject) && (titleRowObject.tagName!="TR")) {
 titleRowObject = titleRowObject.parentNode;
 }
 // obtain the id, which we will use to compare against parentid's, to determine parent-child relations
 if (titleRowObject) {
 var titleRowId = titleRowObject.id;
 titleRowId= titleRowId.substring(2,titleRowId.length);
 var tableObject = titleRowObject.parentNode;
 // watch out for tbodys, which might be sitting in between.
 if (tableObject.tagName !="TABLE") tableObject = tableObject.parentNode;
 var allTableRows = tableObject.getElementsByTagName("TR");
 if (titleRowObject.className.indexOf("treeTableTitleRowOpen") != -1) {
 titleRowObject.className = titleRowObject.className.replace("treeTableTitleRowOpen","treeTableTitleRowClosed");
 for (var i=0;i<allTableRows.length;i++) {
 var parentId;
 if (parentId = allTableRows[i].getAttribute("parentid")) {
 if (parentId.indexOf(titleRowId)!=-1) {  // then we have a parent-child relationship
 allTableRows[i].style.display= "none";
 }
 }
 }
 }
 else {
 titleRowObject.className = titleRowObject.className.replace("treeTableTitleRowClosed","treeTableTitleRowOpen");
 for (var i=0;i<allTableRows.length;i++) {
 var parentId;
 if (parentId = allTableRows[i].getAttribute("parentid")) {
 if (parentId.indexOf(titleRowId)!=-1) {  // then we have a parent-child relationship
 // HOWEVER, if there is any other parent-child relationship under which the row is still closed, we'll have to be careful....
 // consider row tc_4567_7890.  if i initiate close on parent 7890,  but 4567 is still closed, dont display.
 var allParentIds = allTableRows[i].getAttribute("parentid").split("_");
 var foundACloserParentThatIsStillClosed = false;
 for (var j=0; j<allParentIds.length; j++) {
 if ((allParentIds[j]!="tc") && (document.getElementById("tc_"+allParentIds[j]).className=="treeTableTitleRowClosed")) {
 foundACloserParentThatIsStillClosed = true;
 }
 }
 if (!foundACloserParentThatIsStillClosed) {
 allTableRows[i].style.cssText= "display:table-row";
 }
 }
 }
 }
 }
 }
}