function createXHR()
{
	 var request = false;
		 try {
			request = new ActiveXObject('Msxml2.XMLHTTP');
		 }catch (err2) {
			 try {
				request = new ActiveXObject('Microsoft.XMLHTTP');
			 }catch (err3) {
				try {
					request = new XMLHttpRequest();
				}catch (err1)
			{
			request = false;
		}
 	}
 }
 return request;
}