conf = {
	className : 'Hover',
	postfix : '_over'
};
function setMouseOverImages() {
	$A(document.getElementsByClassName(conf.className)).each(function (node){
		node.onmouseout  = changeSrcFunction(node.src);
		node.onmouseover = changeSrcFunction(node.src.replace(/(\.gif|\.jpg|\.png)/, conf.postfix+"$1"));
	});
}
function changeSrcFunction(data){
	return function(){
		this.src = data;
	}
}
Event.observe( window , 'load' , setMouseOverImages , false );


function activation(type)
{
	//ターゲット取得。
	var objStations = $('pref_cd','line_cd','station_cd');
	var objCities   = $('pref_cd_for_city','city_cd');

	//ターゲットのステータス設定。
	switch( type ) {
		case 0:
			var statusSt = false;
			var statusCity = true;
		break;
		case 1:
			var statusSt = true;
			var statusCity = false;
		break;
	}

	//ステータス変更。
	for( var i=0; i<objStations.length; i++ ) {
		objStations[i].disabled=statusSt;
	}
	for( var j=0; j<objCities.length; j++ ) {
		objCities[j].disabled=statusCity;
	}
}