function expandSearch(){
        var formObj= document.expand;
        var mi=formObj.isa.value;
        var url=location.href;

	newurl=url.replace(/ISA=\d+/gi, "ISA="+mi);
	//alert("new url "+newurl+ " url "+url);
	if(url==newurl) newurl = url + mi;
        location.href = newurl;
}