<!--

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();

// outer menu

object['button1']= new objectdata(129,41,"images/btnHome-on.gif","images/btnHome.gif","");
object['button2']= new objectdata(129,41,"images/nav_why_on.gif","images/nav_why_off.gif","");
object['button3']= new objectdata(129,41,"images/nav_coverage_on.gif","images/nav_coverage_off.gif","");
object['button4']= new objectdata(129,41,"images/nav_about_on.gif","images/nav_about_off.gif","");
object['button5']= new objectdata(129,41,"images/nav_staff_on.gif","images/nav_staff_off.gif","");
object['button6']= new objectdata(129,41,"images/nav_contact_on.gif","images/nav_contact_off.gif","");
object['button7']= new objectdata(129,41,"images/nav_links_on.gif","images/nav_links_off.gif","");
object['button8']= new objectdata(129,41,"images/btnEvents-on.gif","images/btnEvents.gif","");
object['button9']= new objectdata(129,41,"images/btnGraph-on.gif","images/btnGraph.gif","");
object['button10']= new objectdata(129,41,"images/btnDatabase-on.gif","images/btnDatabase.gif","");
object['button11']= new objectdata(129,41,"images/nav_articles_on.gif","images/nav_articles_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 -->