// JavaScript Document

// *** rollover

conf = {
       className : 'btn',
       postfix : '_on'
};
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);


//ウィンドウの高さ
var dccy = document.documentElement.clientHeight;
var dccx = document.documentElement.clientWidth;

var dcminy = eval(dccy /5*4)-20;
var dcminx = eval((dccx-962)/2);
document.write("<style type='text/css'> #top-footer{margin:"+dcminy+"px 0 0 "+dcminx+"px;}</style>");