function hideMenus()
{
 var d = window.document;
 var aUls = d.getElementsByTagName("ul");
 if (typeof(aUls.length) != 'undefined')
 {
 	for (var i= 0; i<aUls.length;i++)
 	{
 		if (typeof(aUls[i].className) != 'undefined'
		 	&& aUls[i].className == 'c_submenu'
			 && typeof(aUls[i].style) != 'undefined'
			 && typeof(aUls[i].style.display) != 'undefined')
      	aUls[i].style.display = 'none';
 	}
 }
}
function showMenu(strName)
{
 hideMenus();
 var d = window.document;
 var aUls = d.getElementsByTagName("ul");
 if (typeof(aUls.length) != 'undefined')
 {
 	for (var i= 0; i<aUls.length;i++)
 	{
 		if (typeof(aUls[i].className) != 'undefined'
		 	&& aUls[i].id == 'p_submenu_'+strName
			 && typeof(aUls[i].style) != 'undefined'
			 && typeof(aUls[i].style.display) != 'undefined')
      	aUls[i].style.display = 'block';
 	}
 }
}