function commonUtilGetHttpObject()
{
	var oXmlHttp;
	try
	{  
		//Firefox, Opera 8.0+, Safari  
		oXmlHttp = new XMLHttpRequest();  
		return oXmlHttp; 
	}
	catch (e)
	{  
		// Internet Explorer  
		try
		{    
			oXmlHttp = new ActiveXObject("Msxml2.XMLHTTP");  
			return oXmlHttp;  
		}
		catch (e)
		{    
			try
			{      
				oXmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); 
				return oXmlHttp;     
			}
			catch (e)
			{		
				return false;      
			}    
		}  
	}
}