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var openList;
var openEle;	
function opennav( el ) {
	for ( var i = 0; i < el.childNodes.length; i++ ) {
	    if ( el.childNodes[i] && el.childNodes[i].className == 'optLst' )
	    {
	    	el.childNodes[i].style.display = 'block';
	    	openList = el; openEle = el.childNodes[i];
	    }
	}
}

function closenav( el ) {
	for ( var i = 0; i < el.childNodes.length; i++ ) {
	    if ( el.childNodes[i] && el.childNodes[i].className == 'optLst' )
	    {
	    	el.childNodes[i].style.display = 'none';
	    	if(openList || openEle){
	    		openList = null; openEle= null;
	    	}
	    }
	}
}
var tglStat = false;
	function toggleMenu(){
	if (!tglStat){
	opennav(arguments[0]);
	return tglStat = true;
	}else{
	closenav(arguments[0]);
	return tglStat =false;
	}
	}