function hideMenuDiv(menu_id){

	document.getElementById('menu_' + menu_id).style.display = "none";

	document.getElementById('menuimg_' + menu_id).src = site_skin_images + "/menu_tree_arrow_right.gif";

}



function showMenuDiv(menu_id){

	document.getElementById('menu_' + menu_id).style.display = "block";

	document.getElementById('menuimg_' + menu_id).src = site_skin_images + "/menu_tree_arrow_down.gif";

}

	

function showHideMenu(menu_id){

	if(document.getElementById('menu_' + menu_id).style.display == "block") {

   		hideMenuDiv(menu_id);

    }

   	else{

       	showMenuDiv(menu_id);

    }

}



function menuCollapseExpand(){

	ex = document.getElementById("menuimg_ce");

	for(var i=0; i<menuNodes.length; i++){

		if(ex.menustate == "collapsed"){

			showMenuDiv(menuNodes[i]);

		}

		else{

			hideMenuDiv(menuNodes[i]);

		}

	}

	ex.menustate = ex.menustate == "collapsed"?"expanded":"collapsed";

	ex.src = site_skin_images + "/menu_tree_" + (ex.menustate=="collapsed"?"expand":"collapse") + ".gif";

}