//Usando Ajax pasamos direccion, variables, funcion a ejecutar y id de div
/*
	onclick="javascript: sendAJAX('http://www.youtube.com','', displayDiv, 'contenedor');" //btn
*/
function sendAJAX(uri,variables, callback, divId){
	var XMLHttpRequestObject = false; 
	if (window.XMLHttpRequest) {
		XMLHttpRequestObject = new XMLHttpRequest;
	} else if (window.ActiveXObject) {
		XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
	}
	if(XMLHttpRequestObject) {
		XMLHttpRequestObject.open('GET', uri + '?' + variables); 
		//XMLHttpRequestObject.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); 
		XMLHttpRequestObject.onreadystatechange = function(){ 
			if (XMLHttpRequestObject.readyState == 4 &&	XMLHttpRequestObject.status == 200){
				//alert(XMLHttpRequestObject.responseText);
				callback(XMLHttpRequestObject.responseText, divId); 
				delete XMLHttpRequestObject;
				XMLHttpRequestObject = null;
			}else{
				callback('<img src="img/loader.gif" border="0">', divId);	
			} 
		}
		XMLHttpRequestObject.send(variables); 
	}
}
function displayDiv(valor, div){
	document.getElementById(div).innerHTML = valor;

}