// JavaScript Document

//start function 
Event.observe( window, 'load', function(){
	activeMenu();
	rollOver();	
});


//swap image module named class='swap'
//var g_rolloverImage=new Array();

function rollOver(){
	//画像ロールオーバ
	$$('img.swap').each(function (node){
			var src=node.src;
			var pos=(src.lastIndexOf('.'));
			if(1<pos){	
				var over=src.substr(0,pos)+'_on'+src.substr(pos);
				node.onmouseover=function(){
					this.src=over;
				}
				node.onmouseout=function(){
					this.src=src;
				}
			}
	});
}



function activeMenu(){
	var data = document.body.className;
	var entrydata = document.body.id;
	var nodes = document.getElementById("localnavigation").getElementsByTagName("li");
	if(!(data == "")){
		for (i = 0; i < nodes.length; i++) {
				if(nodes[i].id == data | nodes[i].id == entrydata){
						nodes[i].setAttribute("class","active");
						nodes[i].setAttribute("className","active"); // for IE
				}
		}
	}
}