function CanCopy()
			{
			   window.document.oncontextmenu = function(){ return true;};
			   window.document.ondragstart = function(){ return true;};
			   window.document.onselectstart = function(){ return true;}
			   window.document.onbeforecopy = function(){ return true;};
			}
			function CannotCopy()
			{
			   window.document.oncontextmenu = function(){ return false;};
			   window.document.ondragstart = function(){ return false;};
			   window.document.onselectstart = function(){ return false;};
			   window.document.onbeforecopy = function(){ return false;};
			}
			function expandthis(id){
				var e=document.getElementById(id);
				var ei=document.getElementById(id.substr(1)).childNodes[0];
				if(e!=null&typeof(e)!="undefine"&&e.innerHTML!=''){
					if(e.style.display=="block"){
						e.style.display=""
					}else{
						e.style.display="block";
						ei.src="../images/sys/minusButton.gif";
					}
				}
			}