preFile = new Image();
preFile.src="http://www.purebluejapan.jp/mailformpro/images/mfp_goconfirm_over.gif";
preFile.src="http://www.purebluejapan.jp/mailformpro/images/mfp_reset_over.gif";
preFile.src="http://www.purebluejapan.jp/mailformpro/images/backtoproduct_over.gif";
preFile.src="http://www.purebluejapan.jp/mailformpro/images/mfp_confirm.gif";
preFile.src="http://www.purebluejapan.jp/mailformpro/images/mfp_cancel.gif";
preFile.src="http://www.purebluejapan.jp/mailformpro/images/mfp_send.gif";