// JavaScript Document

// DropDownMenu by Miha Hribar
// http://hribar.info

function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            oldonload();
            func();
        }
    }
}

function prepareMenu() {
    // first lets make sure the browser understands the DOM methods we will be using
  	if (!document.getElementsByTagName) return false;
  	if (!document.getElementById) return false;
  	
  	// lets make sure the element exists
  	if (!document.getElementById("menu")) return false;
  	var menu = document.getElementById("menu");
  	
  	// for each of the li on the root level check if the element has any children
  	// if so append a function that makes the element appear when hovered over
  	var root_li = menu.getElementsByTagName("li");
  	for (var i = 0; i < root_li.length; i++) {
  	    var li = root_li[i];
  	    // search for children
  	    var child_ul = li.getElementsByTagName("ul");
  	    if (child_ul.length >= 1) {
  	        // we have children - append hover function to the parent
  	        li.onmouseover = function () {
  	            if (!this.getElementsByTagName("ul")) return false;
  	            var ul = this.getElementsByTagName("ul");
  	            ul[0].style.display = "block";
  	            return true;
  	        }
  	        li.onmouseout = function () {
  	            if (!this.getElementsByTagName("ul")) return false;
  	            var ul = this.getElementsByTagName("ul");
  	            ul[0].style.display = "none";
  	            return true;
  	        }
  	    }
  	}
  	
  	return true;
}

addLoadEvent(prepareMenu);

//Disable select-text script (IE4+, NS6+)
function disableselect(e){
return false
}
function reEnable(){
return true
}
//if IE4+
document.onselectstart=new Function ("return false")
//if NS6
if (window.sidebar){
document.onmousedown=disableselect
document.onclick=reEnable
}

<!-- 

//Disable right mouse click Script 
//By Maximus ( maximus@nsimail.com) w/ mods by DynamicDrive 
//For full source code, visit http://www.dynamicdrive.com 

var message="System to prevent copying the data in this section"; 

/////////////////////////////////// 
function clickIE4(){ 
if (event.button==2){ 
alert(message); 
return false; 
} 
} 

function clickNS4(e){ 
if (document.layers||document.getElementById&&!document.all){ 
if (e.which==2||e.which==3){ 
alert(message); 
return false; 
} 
} 
} 

if (document.layers){ 
document.captureEvents(Event.MOUSEDOWN); 
document.onmousedown=clickNS4; 
} 
else if (document.all&&!document.getElementById){ 
document.onmousedown=clickIE4; 
} 

document.oncontextmenu=new Function("alert(message);return false") 

// -->