<!--
var browser=false;

if((navigator.appName=="Netscape")&&(parseInt(navigator.appVersion)>=3)){ 
	browser=true;
}
if((navigator.appName=="Microsoft Internet Explorer")&&(parseInt(navigator.appVersion)>=4)){
	browser=true;
}

if (browser){
var object=new Array();
object['button1']= new objectdata(178,17,"images/topn_home_on.gif","images/topn_home_off.gif","");
object['button2']= new objectdata(178,17,"images/topn_pro_on.gif","images/topn_pro_off.gif","");
object['button3']= new objectdata(178,17,"images/topn_lab_on.gif","images/topn_lab_off.gif","");
object['button4']= new objectdata(178,17,"images/topn_retail_on.gif","images/topn_retail_off.gif","");
object['button5']= new objectdata(178,17,"images/rightn_about_on.gif","images/rightn_about_off.gif","");
object['button6']= new objectdata(178,17,"images/rightn_contact_on.gif","images/rightn_contact_off.gif","");
object['button7']= new objectdata(178,17,"images/rightn_directions_on.gif","images/rightn_directions_off.gif","");
object['button8']= new objectdata(178,17,"images/rightn_links_on.gif","images/rightn_links_off.gif","");
}

function objectdata(hsize,vsize,replaceimg,restoreimg,mess){
	if(browser){                
		this.mess=mess;
		this.simg=new Image(hsize,vsize);
		this.simg.src=replaceimg;
		this.rimg=new Image(hsize,vsize);
		this.rimg.src=restoreimg;
	}
}

function ReplaceOrig(name){
	if(browser){
		window.status=object[name].mess;
		document[name].src=object[name].simg.src;
	}
} 

function RestoreOrig(name){
	if(browser){
		window.status="";
		document[name].src=object[name].rimg.src;
	}
}

// End of JavaScript -->