function showdiv(pass) 
{
	var divs = document.getElementsByTagName('div');
	for(i=0;i<divs.length;i++)
	{
		if(divs[i].id.match(pass))
		{//if they are 'see' divs
			if (document.getElementById) // DOM3 = IE5, NS6
				divs[i].style.display="block";// show/hide
			else
			if (document.layers) // Netscape 4
			document.layers[divs[i]].style.display="block";// show/hide
			else // IE 4
			document.all.divs[i].style.display="block";// show/hide
			break;
		}
	}
} 
function hidediv(pass) 
{
	var divs = document.getElementsByTagName('div');
	for(i=0;i<divs.length;i++)
	{
	if(divs[i].id.match(pass)){
		if (document.getElementById)
				divs[i].style.display="none";// show/hide
				else
					if (document.layers) // Netscape 4
				document.divs[i].style.display="none";// show/hide
				else // IE 4
					document.all.divs[i].style.display="none";// show/hide
				break;
				
		}
	}
}

function togglediv(pass)
{
	hidediv('objetivo');
	hidediv('servicios');
	hidediv('porque');
	showdiv(pass);

}
	
	
function showhide(id)
{
if (document.getElementById){
	obj = document.getElementById(id);
	if (obj.style.display == "none"){
	obj.style.display = "";
	} else {
		obj.style.display = "none";
	}
}
}