function Request() { 
	var strHref  = window.document.location.href; 
	var startPos = strHref.indexOf("?");
	var endPos   = strHref.indexOf("=");
	var strRight = strHref.substring(startPos + 1,endPos);
	
	if(startPos == '-1') {
		return '';
	} else {
		return strRight; 
	}
} 

var url=Request();
var from='';
if(url != '') {
	if(url == 'youdao') {
		from='YOUDAO';
	} else {
		from='PPTSHOP';
	}
} else {
	from='PPTSHOP';
}
window.document.getElementById('fromaddress').value=from;