function swImg(iName,str){
	document.images[iName].src = str;
}
//サイドメニュー画像入れ替え

function BlankLinks(){
	if(!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	var areas   = document.getElementsByTagName("area");
	for(var i=0; i<anchors.length; i++){
		var anchor = anchors[i];
		if(anchor.className.indexOf("blank",0) >= 0){
			anchor.target = "_blank";
		}
	}
	for(var i=0; i<areas.length; i++){
		var areaLink = areas[i];
		if(areaLink.className.indexOf("blank",0) >= 0){
			areaLink.target = "_blank";
		}
	}
}