function init(){
	
	document.getElementById("orcamentos").onmouseover = function(){document.getElementById("sub_orca").style.display = 'block';}; 
	document.getElementById("orcamentos").onmouseout = function(){document.getElementById("sub_orca").style.display = 'none';}; 
	document.getElementById("sub_orca").onmouseout = function(){document.getElementById("sub_orca").style.display = 'none';}; 
	document.getElementById("sub_orca").onmouseover = function(){document.getElementById("sub_orca").style.display = 'block';};

	
}

window.onload=init