function MenuChangeVisible(menuname) {
objRow=document.getElementById(menuname+"_row");
objFld=document.getElementById(menuname+"_state");
objImg=document.getElementById(menuname+"_img");

if (objFld.value.toLowerCase()=="true") {
  objRow.style.display="none";
  objFld.value=false;
  objImg.src="images/arrow_open.gif";
  
}
else {
  objRow.style.display="";
  objFld.value=true;
  objImg.src="images/arrow_close.gif"  
}
}

function MenuRollDown(menuname) {
objRow=document.getElementById(menuname+"_row");
objFld=document.getElementById(menuname+"_state");
objImg=document.getElementById(menuname+"_img");

if (objRow.style.display=="none")
{
  objRow.style.display="";
  objImg.src="images/arrow_close.gif";
}
}

function MenuRollUp(menuname) {
objRow=document.getElementById(menuname+"_row");
objFld=document.getElementById(menuname+"_state");
objImg=document.getElementById(menuname+"_img");

if (objFld.value.toLowerCase()=="false" & objRow.style.display!="none")
{
  objRow.style.display="none";
  objImg.src="images/arrow_open.gif";
}
}
			

function MenuRollDownNoState(menuname) {
objRow=document.getElementById(menuname+"_row");

if (objRow.style.display=="none")
{
  objRow.style.display="";
}
}

function MenuRollUpNoState(menuname) {
objRow=document.getElementById(menuname+"_row");

if (objRow.style.display!="none")
{
  objRow.style.display="none";
}
}


function MenuTreeRollDown(menuname) {
objRow=document.getElementById(menuname+"_row");
objFld=document.getElementById("TreeLast_opened");

if (objRow.style.display=="none")
{
  objRow.style.display="";
}

if (objFld.value!=menuname & !objFld.Value=="")
{
  objRow=document.getElementById(objFld.value+"_row");
  if (objRow.style.display!="none")
  {
  	objRow.style.display="none";
  }
  objFld.value=menuname;
}
}