// JavaScript Document
i=0;

function showhide(){
	
	if(i==0){
	document.getElementById('submenu').style.visibility= 'visible';
	i = 1;
	}else{
	document.getElementById('submenu').style.visibility= 'hidden';	
	i = 0;
	}

}

function hidesub(){
	
	document.getElementById('submenu').style.visibility= 'hidden';	
	i=0;
}