Mine

var xmlHttpvar ddcfunction showUser(str,ddc){ xmlHttp=GetXmlHttpObject()if (xmlHttp==null) { alert ("Browser does not support HTTP Request") return }var url="getsubcat_PC.php"url=url+"?q="+strurl=url+"&sid="+Math.random()xmlHttp.open("GET",url,true)xmlHttp.send(null)xmlHttp.onreadystatechange=stateChanged(ddc)}function showUser2(str){ xmlHttp=GetXmlHttpObject()if (xmlHttp==null) { alert ("Browser does not support HTTP Request") return }var url="getsubcat_I.php"url=url+"?q="+strurl=url+"&sid="+Math.random()xmlHttp.onreadystatechange=stateChanged2xmlHttp.open("GET",url,true)xmlHttp.send(null)}function showUser3(str){ xmlHttp=GetXmlHttpObject()if (xmlHttp==null) { alert ("Browser does not support HTTP Request") return }var url="getsubcat_N.php"url=url+"?q="+strurl=url+"&sid="+Math.random()xmlHttp.onreadystatechange=stateChanged3xmlHttp.open("GET",url,true)xmlHttp.send(null)}function stateChanged(ddc) { alert(xmlHttp.readyState)if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {  document.getElementById('subcattag_1_1_'+ddc).innerHTML=xmlHttp.responseText  } }function GetXmlHttpObject(){var xmlHttp=null;try { // Firefox, Opera 8.0+, Safari xmlHttp=new XMLHttpRequest(); }catch (e) { //Internet Explorer try  {  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");  } catch (e)  {  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");  } }return xmlHttp;}function stateChanged2() { if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {  document.getElementById("txtHint2").innerHTML=xmlHttp.responseText  } }function GetXmlHttpObject(){var xmlHttp=null;try { // Firefox, Opera 8.0+, Safari xmlHttp=new XMLHttpRequest(); }catch (e) { //Internet Explorer try  {  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");  } catch (e)  {  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");  } }return xmlHttp;}function stateChanged3() { if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {  document.getElementById("txtHint3").innerHTML=xmlHttp.responseText  } }function GetXmlHttpObject(){var xmlHttp=null;try { // Firefox, Opera 8.0+, Safari xmlHttp=new XMLHttpRequest(); }catch (e) { //Internet Explorer try  {  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");  } catch (e)  {  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");  } }return xmlHttp;}