function swap(a){
	document.getElementById(a).src = "images/hover_" + a + ".jpg";
}

function end(a){
	document.getElementById(a).src = "images/" + a + ".jpg";
}

function showdiv(div){
	if(div != "homenav"){
		if(document.all){
			eval("document.all.homenav.style.display = 'none'"); 	
		} 
		else if(document.layers){
			document.layers["homenav"].display = "none"; 
		} 
		else if(document.getElementById && ! document.all) {
			a = document.getElementById(("homenav")); 
			if(a !== null){
				a.style.display = "none"; 
			}
		}
	}
	if(div != "librarynav"){
		if(document.all){
			eval("document.all.librarynav.style.display = 'none'"); 	
		} 
		else if(document.layers){
			document.layers["librarynav"].display = "none"; 
		} 
		else if(document.getElementById && ! document.all) {
			a = document.getElementById(("librarynav")); 
			if(a !== null){
				a.style.display = "none"; 
			}
		}
	}
	if(div != "automationnav"){
		if(document.all){
			eval("document.all.automationnav.style.display = 'none'"); 	
		} 
		else if(document.layers){
			document.layers["automationnav"].display = "none"; 
		} 
		else if(document.getElementById && ! document.all) {
			a = document.getElementById(("automationnav")); 
			if(a !== null){
				a.style.display = "none"; 
			}
		}
	}
	if(div != "hardwarenav"){
		if(document.all){
			eval("document.all.hardwarenav.style.display = 'none'"); 	
		} 
		else if(document.layers){
			document.layers["hardwarenav"].display = "none"; 
		} 
		else if(document.getElementById && ! document.all) {
			a = document.getElementById(("hardwarenav")); 
			if(a !== null){
				a.style.display = "none"; 
			}
		}
	}
	if(div != "suppliesnav"){
		if(document.all){
			eval("document.all.suppliesnav.style.display = 'none'"); 	
		} 
		else if(document.layers){
			document.layers["suppliesnav"].display = "none"; 
		} 
		else if(document.getElementById && ! document.all) {
			a = document.getElementById(("suppliesnav")); 
			if(a !== null){
				a.style.display = "none"; 
			}
		}
	}
	if(div != "contactnav"){
		if(document.all){
			eval("document.all.contactnav.style.display = 'none'"); 	
		} 
		else if(document.layers){
			document.layers["contactnav"].display = "none"; 
		} 
		else if(document.getElementById && ! document.all) {
			a = document.getElementById(("contactnav")); 
			if(a !== null){
				a.style.display = "none"; 
			}
		}
	}
	if(document.all){
		eval("document.all." + div + ".style.display = 'block'"); 	
	} 
	else if(document.layers){
		document.layers[div].display = "block"; 
	} 
	else if(document.getElementById && ! document.all) {
		a = document.getElementById((div)); 
		if(a !== null){
			a.style.display = "block"; 
		}
	}
}