function addClickBehavior(menuTable)
{
    var tbody = menuTable.getElementsByTagName("TBODY")[0];
    var tr = tbody.getElementsByTagName("TR")[0];
    for(var i = 0; i < tr.childNodes.length; i++)
    {    
        var td = tr.childNodes[i];
        if (td.tagName && td.tagName.toLowerCase() == 'td') 
        {
            var anchor = td.getElementsByTagName("A")[0];
            if(anchor)        
            {                       
                var onClick = td.onmouseover;  
                td.onclick =(function (el, method){
                return function(evt)
                    {
                        method.call(el);
                        if(window.event) 
                        {
                            evt = window.event                        
                        }
                        evt.cancelBubble = true;
                    };})(td, onClick);
                    td.onmouseover = (function(el)
                    {
                        return function()
                        {
                            Menu_HoverRoot(el);                     
                        };})(td);
                     //add cursor style                
                     anchor.style.cursor = "default";                
                     anchor.onclick = function(){return false;};                
                     //td.onmouseout = null;        
                     }
                 }
             }
         }

         function WebForm_RemoveClassName(element, className) 
         {
             var current = element.className; var oldLength = -1; if (current) 
             {
                 while (oldLength != current.length) 
                 {
                     if (current.substring(current.length - className.length - 1, current.length) == ' ' + className) 
                     {
                        element.className =current.substring(0, current.length - className.length - 1);
                        oldLength = current.length;
                        current = element.className;
                        continue;
                    }
                    if (current == className) 
                    {
                        element.className = "";
                        oldLength = current.length;
                        current = element.className;
                        continue;
                    }
                                                                    
                    var index = current.indexOf(' ' + className + ' ');        
                    if (index != -1) 
                    {            
                        element.className =current.substring(0, index) +current.substring(index + className.length + 2, current.length);
                        oldLength = current.length;
                        current = element.className;
                        continue;        
                    }
                    if (current.substring(0, className.length) == className + ' ') 
                    {
                        element.className =current.substring(className.length + 1, current.length);        
                    }       
                    current = element.className;
                    oldLength = current.length;
                }
            }
        }

        function Menu_HoverRoot(item) 
        {
            var node = (item.tagName.toLowerCase() == "td") ? item:item.cells[0];
            var data = Menu_GetData(item);
            if (!data)
            {
                return null;
            }
            var nodeTable = WebForm_GetElementByTagName(node, "table");
            if (data.staticHoverClass) 
            {
                //avoids adding the same class twice
                nodeTable.hoverClass = data.staticHoverClass;
                WebForm_AppendToClassName(nodeTable, data.staticHoverClass);
            }
            node = nodeTable.rows[0].cells[0].childNodes[0]; if (data.staticHoverHyperLinkClass) {
            node.hoverHyperLinkClass = data.staticHoverHyperLinkClass;
            WebForm_AppendToClassName(node, data.staticHoverHyperLinkClass);
        }
        return node;
    }