closeInfoPopup: function() {
	var divs   = document.getElementsByTagName("div");
	var reg = new RegExp('\\binfopopup\\b', 'i');
	for(var i=0;i<divs.length;i++){
	      var this_div = divs[i];
	      if(reg.test(this_div.className) )
			 this_div.parentNode.removeChild(this_div);
	  }	   
	},