if (document.images) {

img1N = new Image(184,39);
img1N.src= './images/button_01.png' ;


img1H= new Image(184,39);
img1H.src= './images/button_hover_01.png' ;


img2N = new Image(184,39);
img2N.src= './images/button_02.png' ;


img2H= new Image(184,39);
img2H.src= './images/button_hover_02.png' ;

img3N = new Image(184,39);
img3N.src= './images/button_03.png' ;


img3H= new Image(184,39);
img3H.src= './images/button_hover_03.png' ;

img4N = new Image(184,39);
img4N.src= './images/button_04.png' ;


img4H= new Image(184,39);
img4H.src= './images/button_hover_04.png' ;

img5N = new Image(184,39);
img5N.src= './images/button_05.png' ;


img5H= new Image(184,39);
img5H.src= './images/button_hover_05.png' ;

img6N = new Image(184,39);
img6N.src= './images/button_06.png' ;


img6H= new Image(184,39);
img6H.src= './images/button_hover_06.png' ;

img7N = new Image(40,20);
img7N.src= './images/login_image_01.png' ;


img7H= new Image(40,20);
img7H.src= './images/login_image_hover_01.png' ;

img8N = new Image(59,20);
img8N.src= './images/login_image_02.png' ;


img8H= new Image(59,20);
img8H.src= './images/login_image_hover_02.png' ;

img9N = new Image(184,40);
img9N.src= './images/button_07.png' ;


img9H= new Image(184,40);
img9H.src= './images/button_hover_07.png' ;


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

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

}