var REQ;

function initializeAJAXReq() {
	var localReq;
	try{localReq=new XMLHttpRequest();} catch (e){
		try{localReq=new ActiveXObject("Msxml2.XMLHTTP");}catch (e){
		try{localReq=new ActiveXObject("Microsoft.XMLHTTP");}catch (e){alert('Not Supported'); return false;}}}
	 if (arguments.length ==1){
		 		arguments[0] = localReq;
	   }else{
	  	 REQ = localReq;
	 }
	 return localReq;
}