/*
	This is the JavaScript file for the AJAX Suggest Tutorial

	You may use this code in your own projects as long as this 
	copyright is left	in place.  All code is provided AS-IS.
	This code is distributed in the hope that it will be useful,
 	but WITHOUT ANY WARRANTY; without even the implied warranty of
 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	
	For the rest of the code visit http://www.DynamicAJAX.com
	
	Copyright 2006 Ryan Smith / 345 Technical / 345 Group.	

*/
//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("Please update your browser before using this site.");
	}
}

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

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

function searchSuggest() {
	if (searchReq.readyState == 4 || searchReq.readyState == 0) {
		var str = escape(document.getElementById('txtSearch').value);
		searchReq.open("GET", 'ss/searchSuggest.php?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.innerHTML = '';
		var str = searchReq.responseText.split("\n");
		for(i=0; i < str.length - 1; i++) {
			//Build our element string.  This is cleaner using the DOM, but
			//IE doesn't support dynamically added attributes.
			
			var elem = str[i].split("|");
			
			var suggest = '<div id="ss_elem'+i+'" onmouseover="javascript:suggestOver(this);" ';
			suggest += 'onmouseout="javascript:suggestOut(this);" ';
			suggest += 'onclick="javascript:setSearch(this.innerHTML, ' + elem[1] + ');" ';
			suggest += 'class="suggest_link">'+ elem[0] + '</div>';
			ss.innerHTML += suggest;
		}
		
		if (str.length > 1) {
			ss.style.visibility = 'visible';
		} else {
			ss.style.visibility = 'hidden';
		}
		
		
	}
}

//Called when the AJAX response is returned.
function handleZipSuggest() {
	if (searchReq.readyState == 4) {
		var ss = document.getElementById('zip_suggest');
		var an = document.getElementById('any_zipcode');
		var posx = an.offsetLeft;
		var posy = an.offsetTop;
		
		ss.style.top= (posy+18) +"px";
		ss.style.left= posx +"px";
		ss.innerHTML = '';

		var str = searchReq.responseText.split("\n");
		for(i=0; i < str.length - 1; i++) {
			//Build our element string.  This is cleaner using the DOM, but
			//IE doesn't support dynamically added attributes.
			
			var elem = str[i].split("|");
			
			var suggest = '<div onmouseover="javascript:suggestOver(this);" ';
			suggest += 'onmouseout="javascript:suggestOut(this);" ';
			suggest += 'onclick="javascript:setZip(this.innerHTML, ' + elem[1] + ');document.myForm.submit();" ';
			suggest += 'class="suggest_link">' + elem[0] + '</div>';
			ss.innerHTML += suggest;
		}
		
		if (str.length > 1) {
			ss.style.visibility = 'visible';
		} else {
			ss.style.visibility = 'hidden';
		}
		
		
	}
}

//Mouse over function
function suggestOver(div_value) {
	div_value.className = 'suggest_link_over';
}
//Mouse out function
function suggestOut(div_value) {
	div_value.className = 'suggest_link';
}
//Click function
function setSearch(value, id_value) {
	document.getElementById('txtSearch').value = html_entity_decode(value);
	document.getElementById('owner_id').value = id_value;
	document.getElementById('search_suggest').innerHTML = '';
	document.getElementById('search_suggest').style.visibility = 'hidden';
}

//Click function
function setZip(value, id_value) {
	document.getElementById('any_zipcode').value = id_value;
	document.getElementById('zip_suggest').innerHTML = '';
	document.getElementById('zip_suggest').style.visibility = 'hidden';
}

//decode html entities
function html_entity_decode(str) {
  var ta=document.createElement("textarea");
  ta.innerHTML=str.replace(/</g,"&lt;").replace(/>/g,"&gt;");
  return ta.value;
}