function getDomainUrl() {
	var http = document.domain;
	var tmpdomain = "localhost";
	var maohao = ":";
	var digitalRegx = /^\d*.\d*.\d*.\d*$/;
	if ((http.indexOf(tmpdomain) != -1)||(http.indexOf(maohao)!=-1)||(digitalRegx.exec(http)!=null)) {
		var domainUrl = document.URL;
		var length = domainUrl.length;
		http = domainUrl.substr(0, 7);
		var domain = domainUrl.substr(7, length - 7);
		var pos = domain.indexOf("/");
		var dc = domain.substr(0, pos);
		//server domain address
		http = http + dc;
		//local domain address
		var ddc = domain.substr(pos + 1, domain.length - pos);
		pos = ddc.indexOf("/");
		http = http + "/" + ddc.substr(0, pos);
	}

	if(http.indexOf("http")==-1){
		http = "http://"+http;
	}
	
	return http;
}