function checkField(field, string)
{
	if(field.value.length ==0) {
		alert(string);
		field.focus();
		return false;
	} else {
		return true;
	}
}

function mediaWrite(url)
{
	var html = '';
	html ='<OBJECT id=MediaPlayer style="BACKGROUND-POSITION-X: center; BACKGROUND-REPEAT: no-repeat; BACKGROUND-COLOR: #ffffff" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,5,715" type=application/x-oleobject height="100%" standby="Loading Microsoft Windows Media Player components..." width="100%" align=center classid=clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95>';

	html +='<PARAM NAME="Filename" VALUE="'+url+'">';
	html +='<param name="stretchToFit" value="true">';
	html +='<PARAM NAME="AutoStart" VALUE="1">';
	html +='<PARAM NAME="EnableContextMenu" VALUE="0">';
	html +='<PARAM NAME="ShowControls" VALUE="1">';
	html +='<PARAM NAME="Mute" VALUE="0">';
	html +='<PARAM NAME="Volume" VALUE="50">';
	html +='</OBJECT>';

	document.write(html);
}