function init(){



	document.getElementById("btsub").onmouseover = function(){document.getElementById("sub-link").style.display = 'block';}; 

	

	document.getElementById("btsub").onmouseout = function(){document.getElementById("sub-link").style.display = 'none';}; 

	

	document.getElementById("sub-link").onmouseout = function(){document.getElementById("sub-link").style.display = 'none';}; 

	

	document.getElementById("sub-link").onmouseover = function(){document.getElementById("sub-link").style.display = 'block';};

	

	

	document.getElementById("btsubserv").onmouseover = function(){document.getElementById("sub-menu").style.display = 'block';}; 

	

	document.getElementById("btsubserv").onmouseout = function(){document.getElementById("sub-menu").style.display = 'none';}; 

	

	document.getElementById("sub-menu").onmouseout = function(){document.getElementById("sub-menu").style.display = 'none';}; 

	

	document.getElementById("sub-menu").onmouseover = function(){document.getElementById("sub-menu").style.display = 'block';};

	

	



}

window.onload=init