function email(account,host){
	mailAddress=account+'@'+host;
	document.write("<a href=\"mailto:"+mailAddress+"\" title=\""+mailAddress+"\">"+mailAddress+"</a>");
}




//imgのsrcに_onを付け外しする
$(function(){
	$("img.rollover").mouseover(function(){
		$(this).attr("src",$(this).attr("src").replace(/^(.+)(\.[a-z]+)$/,"$1_on$2"));
	}).mouseout(function(){
		$(this).attr("src",$(this).attr("src").replace(/^(.+)_on(\.[a-z]+)$/,"$1$2"));
	}).each(function(){
		$("<img>").attr("src",$(this).attr("src").replace(/^(.+)(\.[a-z]+)$/,"$1_on$2"));
	});
});