function hoverNav(strNav){
	if(strNav == 'service'){
		document.getElementById("subNav").style.display = ""
		document.getElementById("subNav2").style.display = ""
		document.getElementById("subNav3").style.display = "none"
	}
	if(strNav == 'about'){
		document.getElementById("subNav").style.display = "none"
		document.getElementById("subNav2").style.display = "none"
		document.getElementById("subNav3").style.display = ""
	}
	if(strNav == 'other'){
		document.getElementById("subNav").style.display = "none"
		document.getElementById("subNav2").style.display = "none"
		document.getElementById("subNav3").style.display = "none"
	}

}