/* プリロード */
data=new Array(
		"img/b_home_o.gif",
		"img/b_profile_o.gif",
		"img/b_collection_o.gif",
		"img/b_blog_o.gif",
		"img/b_recruit_o.gif",
		"img/b_contact_o.gif",
		"img/b_concept_o.gif",
		"img/b_outline_o.gif",
		"img/b_map_o.gif"
			   );
btn=new Array();
for(i=0;i<data.length;i++){btn[i]=new Image();btn[i].src=data[i];}
function swapImg(str,num){document.images[str].src ="img/b_" + num + ".gif";}


function toggle(tag1,tag2) {
	if(document.getElementById){
		target1=document.getElementById(tag1);
		target2=document.getElementById(tag2);
		if(target1.style.display == "none"){
			target1.style.display = "";
			target2.style.display = "none";
		}else{}
	}
}