var xmlHttpfunction;

function DisplayAuthors(frm,str)
{
 xmlHttp=GetXmlHttpObject()
 if (xmlHttp==null)
 {
   alert("Browser does not support HTTP Request")
   return
 }
 

   x=document.AuthorList
   var url="DisplayAuthorList.php"
   url=url+"?Alpha="+str
   xmlHttp.onreadystatechange=stateChanged

   xmlHttp.open("GET",url,true)
   xmlHttp.send(null)
}

function stateChanged()
{
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
	    document.getElementById("DivAuthorList").innerHTML=xmlHttp.responseText 
	  
	} 

}

function GetXmlHttpObject()
{
	var xmlHttp=null;
	try
	{
	// Firefox, Opera 8.0+, Safari
	xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
	 //Internet Explorer
		try
		{
		  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
		  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}