function doeMenu(id_pagina)
{
	
	if(id_pagina == 1)
	{
		parent.menu.location = "menu_all.htm";
		parent.boven.location = "top_waaromitserve.htm";
		parent.main.location = "waaromitserve.htm";
	}
	else if(id_pagina == 2)
	{
		parent.menu.location = "menu_all.htm";
		parent.boven.location = "top_diensten.htm";
		parent.main.location = "diensten.htm";
	}
	else if(id_pagina == 3)
	{
		parent.menu.location = "menu_beveiliging.htm";
		parent.boven.location = "top_beveiliging.htm";
		parent.main.location = "beveiliging.htm";
	}
	else if(id_pagina == 4)
	{
		parent.menu.location = "menu_hardwaresoftware.htm";
		parent.boven.location = "top_hardwaresoftware.htm";
		parent.main.location = "hardwaresoftware.htm";
	}
	else if(id_pagina == 5)
	{
		parent.menu.location = "menu_all.htm";
		parent.boven.location = "top_support.htm";
		parent.main.location = "support.htm";
	}
	else if(id_pagina == 6)
	{
		parent.menu.location = "menu_all.htm";
		parent.boven.location = "top_contact.htm";
		parent.main.location = "contact.htm";
	}
	else if(id_pagina == 7)
	{
		parent.menu.location = "menu_all.htm";
		parent.boven.location = "top_links.htm";
		parent.main.location = "links.htm";
	}
}