ver = parseInt(navigator.appVersion);
enablePlay = (ver>3 && navigator.appName=='Microsoft Internet Explorer') ? 1 : 0;

function play(fileName) {
	//preview.document.body.style.cursor = 'Wait';
	if(enablePlay) {
		if (document.all['BGSOUND_ID'].src=='') {
			document.all['BGSOUND_ID'].src = fileName;
		}
		else {
			if (document.all['BGSOUND_ID'].src!=fileName) {
				document.all['BGSOUND_ID'].src = fileName;
			}
			else {
				document.all['BGSOUND_ID'].src = '';
			}
		}
	}
}