if (document.images) {

homeN= new Image(90,30);
homeN.src= 'images/b-home.gif' ;
homeH= new Image(90,30);
homeH.src= 'images/b-home_h.gif' ;

profileN= new Image(90,30);
profileN.src= 'images/b-profile.gif' ;
profileH= new Image(90,30);
profileH.src= 'images/b-profile_h.gif' ;

enquiryN= new Image(90,30);
enquiryN.src= 'images/b-inquiry.gif' ;
enquiryH= new Image(90,30);
enquiryH.src= 'images/b-inquiry_h.gif' ;

careerN= new Image(90,30);
careerN.src= 'images/b-feedback.gif' ;
careerH= new Image(90,30);
careerH.src= 'images/b-feedback_h.gif' ;

contactusN= new Image(90,30);
contactusN.src= 'images/b-contact.gif' ;
contactusH= new Image(90,30);
contactusH.src= 'images/b-contact_h.gif' ;


function myOn(myImgName) {
document[myImgName].src=eval(myImgName+ 'H' ).src;
}

function myOut(myImgName) {
document[myImgName].src=eval(myImgName+ 'N' ).src;
}

}