//p = console.log;

$(function(){
var conf = {
	className : 'btn',
    postfix : '_ov'
  };
  $('.'+conf.className).each(function(){
    this.originalSrc = this.src;
    this.rolloverSrc = this.originalSrc.replace(/(\.gif|\.jpg|\.png)/, conf.postfix+"$1");
    preloadImage(this.rolloverSrc);
  }).hover(function(){
    this.src = this.rolloverSrc;
  },function(){
    this.src = this.originalSrc;
  });
});

//プリロード
preloadedImages = [];
function preloadImage(url){
	var p = preloadedImages;
	var l = p.length;
	p[l] = new Image();
	p[l].src = url;
}

// ポップアップウインドウ
var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height){
	if(popUpWin){
		if(!popUpWin.closed) popUpWin.close();
	}
	popUpWin = open(URLStr, 'popUpWin', 'toolbar=yes,location=yes,directories=yes,status=yes,menub ar=no,scrollbars=yes,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}