var http = createRequestObject();

function createRequestObject() {

   var objAjax;

   var browser = navigator.appName;

   if(browser == "Microsoft Internet Explorer"){

      objAjax = new ActiveXObject("Microsoft.XMLHTTP");

   }else{

      objAjax = new XMLHttpRequest();

   }

   return objAjax;

}



function getNewContent(){

   http.open('get','newcontent.php');

   http.onreadystatechange = updateNewContent;

   http.send(null);

   return false;

}



function updateNewContent(){

   if(http.readyState == 4){

	 if (http.responseText.length > 700){

	  //document.getElementById('div1').style.visibility = 'visible'; 	 		

      document.getElementById('mySentence').innerHTML = http.responseText;

	 }else {

		// document.getElementById('div1').style.visibility = 'hidden'; 	 		

	 }

	 

   }

}

function alertshow(id,count){
	
	id=id+1;
	if(id>=count) { id=1;}
if (window.XMLHttpRequest)
	{// code for IE7+, Firefox, Chrome, Opera, Safari
	xmlhttp=new XMLHttpRequest();
	}
	else
	{// code for IE6, IE5
	xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	var url = "newcontent.php?iid="+id;
	xmlhttp.open("GET",url,false);
	xmlhttp.send(null);
	
	document.getElementById('alerttt').innerHTML=xmlhttp.responseText;
	setTimeout("alertshow("+id+","+count+")",5000);
}