//Create a boolean variable to check for a valid IE instance.
var xmlhttp = false;

//Check if we are using IE.
try {
	//If the javascript version is greater than 5.
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
	//If not, then use the older active x object.
	try {
		//If we are using IE.
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	} catch (E) {
		//Else we must be using a non-IE browser.
		xmlhttp = false;
		}
	}

//If we are using a non-IE browser, create a JavaScript instance of the object.
if (!xmlhttp && typeof XMLHttpRequest != 'undefined') { xmlhttp = new XMLHttpRequest(); }

$(document).ready(function(){
	$('#dialogMap').dialog({ autoOpen: false, modal: true, height: 450, width: 450 });
 	
 	$('.dialogMapButton').click(function() { 
 		$('#dialogMap').dialog('open'); 
 		eUrl = $(this).attr('url');
 		// alert(eUrl);
 		$("#modalIframeId").attr("src",eUrl);
 		});

 	$('#addCommentSend').click(function() { 
 		commentText = escape($('#addCommentText').val());
		theurl = 'bin/addComment.php?number='+number+'&id='+commentId+'&commentText='+commentText;
		$.getScript(theurl);
		loadComments();
		$("#addCommentText").val("");
 		});

	$('.commentDeleteButton').livequery('click', function(event) {
		tmp = $(this).attr('id').split('_');
		theid = tmp[1];
		theurl = 'bin/delComment.php?number='+number+'&id='+theid;
 		// alert('URL: '+theurl);
 		$.getScript(theurl);
 		commentCount--;
 		$('#commentDiv_'+theid).empty();
 		});
})

function look4Comments()
	{
	loadComments();
	updateTimerId = setTimeout('look4Comments();', 5000);
	}

function loadComments()
	{
	theurl = 'bin/loadNextComment.php?id='+commentId+'&commentCount='+commentCount;
	$.getScript(theurl);
	}

function getUser() 
	{
	var number = document.getElementById("number").value;	
	var passcode = document.getElementById("passcode").value;	
	var alias = document.getElementById("alias").value;
	var objID = "showUser";
	var serverPage = "setAlias.php?number="+encode(number)+"&passcode="+encode(passcode)+"&alias="+encode(alias);

	var obj = document.getElementById(objID);
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() 
		{
		if (xmlhttp.readyState == 4) 
			{
			obj.innerHTML = xmlhttp.responseText;
			}
		}
	xmlhttp.send(null);		
	}

function encode(str) 
	{
	var result = "";
	
	for (i = 0; i < str.length; i++) 	
		{
		if (str.charAt(i) == " ")
			{
			result += "+";
			} else {
			result += str.charAt(i);
			}
		}
	return escape(result);
	}

function textCounter(field, countfield) 
	{
	countfield.value = field.value.length;
	}

function textCounterLimit(field, countfield, maxlimit) 
	{
	if (field.value.length > maxlimit) // if too long...trim it!
		{
		field.value = field.value.substring(0, maxlimit);
		// otherwise, update 'characters left' counter
		} else {
		countfield.value = maxlimit - field.value.length;
		}
	}