// JavaScript Document
function getXmlObject(){
	var xmlHttp = null;
	// Internet Explorer    
	try{   
		xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");      
	}catch (e){}    
	
	if(xmlHttp == null){
		try{
			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");        
		}catch (e){}
	}
		
	if(xmlHttp == null){
		try{    
			// Firefox, Opera 8.0+, Safari    	
			xmlHttp = new XMLHttpRequest();    
		}catch (e){}
	}
	
	return xmlHttp;
}

function roundNumber(num, dec) {
	var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
	return result;
}