function getElementsByClassName(classname, node) {
  if(!node) node = document.getElementsByTagName("body")[0];
	  var a = [];
	  var re = new RegExp('\\b' + classname + '\\b');
	  var els = node.getElementsByTagName("*");
	  for(var i=0,j=els.length; i<j; i++)
		if(re.test(els[i].className))a.push(els[i]);
	return a;
}
function removeOLS() {
	toff=getElementsByClassName('ols_login');
	for (var i=0; i < getElementsByClassName('ols_login').length; i++) {
		toff[i].style.display="none";
	}
 }
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

addLoadEvent(removeOLS);
addLoadEvent(function() {
});