function overimg(imgname){
	eval("document." +imgname+ ".src='/images/smenu-" +imgname+ "_on.png'");
}
function outimg(imgname){
	eval("document." +imgname+ ".src='/images/smenu-" +imgname+ ".png'");
}


function overmenu(imgname){
	eval("document." +imgname+ ".src='/images/menu-" +imgname+ "_on.png'");
}
function outmenu(imgname){
	eval("document." +imgname+ ".src='/images/menu-" +imgname+ ".png'");
}