htmlソースからclass=""を抜き出す

下記、上記スクリプトのソース。

<script type="text/javascript">
function nukinuki(){
	hoge01 = document.frm.bar01.value;
	hoge02 = hoge01.match(/class=\".*?\"/g);

if (hoge02) {
	hoge03 = "classは " + hoge02.length + "コ発見\n\n";
	for(i=0; i < hoge02.length; i++ ){
	hoge03  += (i+1) + "つ目：" + hoge02[i] + "\n";
}
	hoge06 = new RegExp(/\n(\d{1})つ/g);
	hoge07 = hoge03.replace(hoge06,"\n00$1つ");

	hoge08 = new RegExp(/\n(\d{2})つ/g);
	hoge09 = hoge07.replace(hoge08,"\n0$1つ");

document.frm.result.value = hoge09;
}
else{ document.frm.result.value = "なし！"; }
}
</script>