function getXhr(){
	var xhr = null; 
	if(window.XMLHttpRequest)
		xhr = new XMLHttpRequest(); 
	else if(window.ActiveXObject){ 
		try {
			xhr = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			xhr = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	else {
		alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest..."); 
		xhr = false; 
	} 
	return xhr
}


function sendMail(theForm,objId,url)
{
	var obj = document.getElementById(objId);
	var str = "";
	for(var i =0;i<theForm.elements.length;i++)
	{
	
		if(theForm.elements[i].type == "text")
		{
			if(str!="")
				str+="&";
			
			str+= theForm.elements[i].name + "=" +theForm.elements[i].value;
			
			
			}
	}
	var request = getXhr();
	
	request.open("POST",url,true);
	request.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	request.onreadystatechange = function()
	{
		if(request.readyState == 4 && request.status == 200)
		{
			obj.innerHTML = request.responseText; 	
		}
	}
	request.send(str);
}

function resetValue(objId)
{
	objId = document.getElementById(objId);
	objId.value = "";
}