var image_name = null
if(document.images){

//

g1		= new Image();
g1.src		= "img/akiralogo.png";
g1_over		= new Image();
g1_over.src	= "img/akiralogo.png";

// 

}

function change_over(image_name)
{
if (document.images){
if (image_name == "g1") document[image_name].src = g1_over.src ;
}
}

function change_back(image_name)
{
if (document.images){
if (image_name == "g1") document[image_name].src = g1.src ;
}
}