function setMenu(){
    setRollOver("feature",	"../images/common/menu_on_01.gif");
    setRollOver("past2now",	"../images/common/menu_on_02.gif");
    setRollOver("column",	"../images/common/menu_on_03.gif");
    setRollOver("whiles",	"../images/common/menu_on_04.gif");
}