function getXMLHTTPRequest(){
	var request = false;
	try {
    	request = new XMLHttpRequest(); /* e.g. Firefox */
 	}
	catch(err1) {
  		try {
    		request = new ActiveXObject("Msxml2.XMLHTTP");
  			/* some versions IE */
    	}
  		catch(err2){
    		try {
      			request = new ActiveXObject("Microsoft.XMLHTTP");
  				/* some versions IE */
      		}
      		catch(err3) {
        		request = false;
        	}
    	}
  	}
	return request;
}