function objetoAjax(){
var xmlhttp=false;
try {

xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch (E) {
xmlhttp = false;
}

}
if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
  xmlhttp = new XMLHttpRequest();
  }
  return xmlhttp;
  }
  
function ajaxFunction(divRes,fileRes,vars)
{
	varsText = '';
	arrayVars = vars.split('-');
	//alert(arrayVars.length);
	varsNum = (arrayVars.length);
	for (i=0;i<varsNum;i++)
		{
			varsText = varsText + arrayVars[i];
		}
	
	
	divResultado = document.getElementById(divRes);
  	
	ajax=objetoAjax();
 	ajax.open("POST", fileRes,true);
  	ajax.onreadystatechange=function() 
	{
		
		if (ajax.readyState==4) 
		{
	 		divResultado.innerHTML = ajax.responseText
		}
     }
  	ajax.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	//ajax.send("name="+name)
	ajax.send(varsText)
	//setTimeout('document.form.reset()',10);
}