/*Gets the browser specific XmlHttpRequest Object*/
function getXmlHttpRequestObject()
{
	if (window.XMLHttpRequest)
	{
		return new XMLHttpRequest();
	} 
	else if(window.ActiveXObject)
	{
		return new ActiveXObject("Microsoft.XMLHTTP");
	} 
	else
	{
		/*alert("Your Browser Does Not Support AJAX");*/
	}
}

/*Our XmlHttpRequest object to get the auto suggest*/
var searchReq = getXmlHttpRequestObject();

function searchSuggest()
{
	/*Called from keyup on the search textbox. Starts the AJAX request.*/
	if (searchReq.readyState == 4 || searchReq.readyState == 0)
	{
		var str = escape(document.getElementById('txtSearch').value);
		searchReq.open("GET", '../searchSuggest.asp?search=' + str, true);
		searchReq.onreadystatechange = handleSearchSuggest;
		searchReq.send(null);
	}
}

/*Called when the AJAX response is returned*/
function handleSearchSuggest()
{
	if (searchReq.readyState == 4)
	{
		var ss = document.getElementById('search_suggest')
		ss.style.display='none';
		ss.innerHTML = '';
		ss.style.border='';
		var str = searchReq.responseText.split("\n");
		for(i=0; i < str.length - 1; i++)
		{
			var suggest='';
			if (i==0){suggest += '<font class="navhref" style="color:black;font-weight:normal">Drugs &amp; existing topics are listed below</font>'}
			/*Build our element string.  This is cleaner using the DOM, but	IE doesn't support dynamically added attributes.*/
			suggest += '<div style="text-decoration:underline;" onmouseover="javascript:suggestOver(this);" ';
			suggest += 'onmouseout="javascript:suggestOut(this);" ';
			suggest += 'onclick="javascript:setSearch(this.innerHTML);" ';
			suggest += 'class="suggest_link">' + str[i] + '</div>';
			ss.style.display='';
			ss.innerHTML += suggest;
			ss.style.border='solid 1px #A5A5A5';
		}
	}
}

/*Mouse over function*/
function suggestOver(div_value)
{
	div_value.style.color = '#D37100';
}

/*Mouse out function*/
function suggestOut(div_value)
{
	div_value.style.color = '#1010C2';
}

/*Click function*/
function setSearch(value)
{
	document.getElementById('txtSearch').value = value;
	document.getElementById('search_suggest').style.border='';
	document.getElementById('search_suggest').innerHTML = '';
	document.frmSearch.submit();
}