// プリロード
//window.onload=function(){
//	MM_preloadImages('img/beans01_title_open.jpg','img/beans02_title_open.jpg','img/beans03_title_open.jpg','img/beans04_title_open.jpg','img/beans05_title_open.jpg')
//}


function swapImg(myId){
	var iSeparator = 'img/beans0';
	var iBox = 'boxBeans0';
	if(myId.indexOf('1',0)!=-1) {
		 iSeparator = iSeparator+'1_title';
		 iBox = iBox+'1';
	}
	if(myId.indexOf('2',0)!=-1) {
		 iSeparator = iSeparator+'2_title';
		 iBox = iBox+'2';
	}
	if(myId.indexOf('3',0)!=-1) {
		 iSeparator = iSeparator+'3_title';
		 iBox = iBox+'3';
	}
	if(myId.indexOf('4',0)!=-1) {
		 iSeparator = iSeparator+'4_title';
		 iBox = iBox+'4';
	}
	if(myId.indexOf('5',0)!=-1) {
		 iSeparator = iSeparator+'5_title';
		 iBox = iBox+'5';
	}
//		alert(iBox);

	var iSrc = document.getElementById(myId).src;
	var iPath = iSrc.substring(0,iSrc.indexOf(iSeparator,0)+iSeparator.length);	
	if(iSrc.indexOf('_open.',0)!=-1){
		document.getElementById(iBox).style.display = 'none';
		document.getElementById(myId).src = iPath + '_close.jpg';
	}else{
		document.getElementById(iBox).style.display = 'block';
		document.getElementById(myId).src = iPath + '_open.jpg';
	}
}