var ro_set=0;
var ro2_set=0;
var ro3_set=0;
var ro4_set=0;
function getRequestObject() {
	var ro;
	if(window.XMLHttpRequest) {
		try {
			ro = new XMLHttpRequest();
		}
		catch(e) {
			ro = null;
		}
	}
	else {
		try {
			ro = new ActiveXObject("Msxml2.Xmlhttp");
		}
		catch(e) {
			try {
				ro = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch(e) {
				ro = null;
			}
		}
	}
	if(ro == null) {
		alert("Ihr Browser untersttzt kein AJAX!");
	}
	return ro;
}
function getDom(dom,tagname) {
    temp = dom.getElementsByTagName(tagname);
    elem = temp[0].firstChild.nodeValue;
    return elem;
}
function rso_abort(obj) {
	if(obj) {
		obj.abort();	
	}
}