function smartRollover() {
 if(document.getElementsByTagName) {
  var images = document.getElementsByTagName("img");
  
  for(var i=0; i < images.length; i++) {
   if(images[i].getAttribute("src").match("_off.")) {
    var imgObject = new Image();
    imgObject.src = (images[i].getAttribute("src").replace("_off.", "_on."));
    images[i].onmouseover = function() {
     this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
    }
    images[i].onmouseout = function() {
     this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
    }
   }
  }
 }
}
if(window.addEventListener) {
 window.addEventListener("load", smartRollover, false);
}
else if(window.attachEvent) {
 window.attachEvent("onload", smartRollover);
}

//グローバルナビ用
function PointOnG(sel){
	if(document.getElementById(sel)){
		document.getElementById(sel).className = "on";
	}	

}



//sideナビ用
function PointOn(sel){
	if(document.getElementById(sel)){	
		document.getElementById(sel).className = "on";
	}	

}