[danik.js]

var array = ["http://site1.com/", "http://site2.com/", "http://site3.com/" ];
 
for (var i = 0; i < array.length; i++) {
 
 
var xhr = new XMLHttpRequest();
xhr.open("GET", array[i], true);
xhr.onreadystatechange = function() {
  if (this.readyState == 4) {
    
   console.log(this.responseText);
   
  }
}
xhr.send();
 
}