var NORMAL_STATE = 4;
var requestUrlForAction = "http://www.letsallshare.com/ajax/";

function _newXMLHttpRequest()
{
	var retVal;
	if (window.XMLHttpRequest){
		retVal = new XMLHttpRequest();
	}else if (window.ActiveXObject){
		try{
			retVal = new ActiveXObject("Msxml2.XMLHTTP");
		}catch (e){
			try{
				retVal = new ActiveXObject("Microsoft.XMLHTTP");
			}catch (e){}
		}
	}
	return retVal;
}

function makeheaderRequest(pst, URL){
	var reqP = _newXMLHttpRequest();
	reqP.open('POST', URL, true);
	reqP.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	reqP.setRequestHeader("Content-length", pst.length);
	reqP.setRequestHeader("Connection", "close");
	reqP.send(pst);
	return reqP;
}

// getSeed method:  gets a seed from the server for this transaction
function getSeed(id) 

{		// only get a seed if we're not logged in and we don't already have one
			
			http.open('GET', LOGIN_PREFIX + 'itemID=' + id , true);
			http.onreadystatechange = handleHttpGetSeed;
			http.send(null);
}


// handleHttpGetSeed method: called when the seed is returned from the server
function handleHttpGetSeed()
{
	// if there hasn't been any errors
	if (http.readyState == NORMAL_STATE) {
		buildTopicList();
//		hasSeed = true;
	}
}

function formPost(formName,callthis,action){
	var prms = getParams(formName);
	var reqP = _newXMLHttpRequest();

	reqP.onreadystatechange = postBack;
	reqP.open('POST', requestUrlForAction+action, true);
	reqP.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	reqP.setRequestHeader("Content-length", prms.length);
	reqP.setRequestHeader("Connection", "close");
	reqP.send(prms);

	function postBack(){
		if (reqP.readyState == 4){
			if (reqP.status == 200){
				jsonRetVal = reqP.responseText;
				eval(callthis+"()");
			}
		}
	}
}

function getParams(formName){
	var pst = "";
	var theForm = document.forms[formName];
	for(var i=0;i<theForm.length;i++){
		if(theForm[i].tagName=="SELECT"){
			pst += "&" + theForm[i].name + "=";
			if(theForm[i][theForm[i].selectedIndex].value){
				pst += theForm[i][theForm[i].selectedIndex].value;
			}else{
				pst += theForm[i][theForm[i].selectedIndex].text;
			}
		}else{
			if((theForm[i].getAttribute('type') == "checkbox") || (theForm[i].getAttribute('type') == "radio")){
				if(theForm[i].checked){
					pst += "&" + theForm[i].name + "=";
					pst += encodeURIComponent(theForm[i].value);
				}
			}else{
				pst += "&" + theForm[i].name + "=";
				pst += encodeURIComponent(theForm[i].value);
			}
		}
	}
	return pst.substr(1);
}

function updateCommunityName(id){
	var commName;
	var pst = '';
	commName = document.getElementById('communitynewname_'+id).value;
	pst = "communityid="+id+"&newname="+commName;

	reqP = makeheaderRequest(pst, requestUrlForAction+'updatecommunity.php');
	reqP.onreadystatechange = updatecommunityreturn;

	function updatecommunityreturn(){
		if (reqP.readyState == 4){
			if (reqP.status == 200){
				jsonRetVal = reqP.responseText;
				if(jsonRetVal==1){
					showCommunityUpdateLink(id);
				}else{
					unableToUpdateName(id);
				}
			}
		}
	}
	return false;
}

function deleteComunityUsers(caction){
	document.managemembers.communityAction.value = caction;
	pst = getParams('managemembers');

	reqP = makeheaderRequest(pst, requestUrlForAction+'deletecommunitymembers.php');
	reqP.onreadystatechange = showdeletedsuccess;

	function showdeletedsuccess(){
		if (reqP.readyState == 4){
			if (reqP.status == 200){
				jsonRetVal = reqP.responseText;
				var retArr = jsonRetVal.split('|');
				if(retArr[0]==1){
					if((retArr[1]!='')){
						var temp = retArr[1];
						var actionedIds = temp.split(',');
						for(var i=0;i<actionedIds.length;i++){
							if(document.getElementById('status'+actionedIds[i])){
								if(caction=='delete'){
									document.getElementById('status'+actionedIds[i]).innerHTML = 'Deleted';
								}else if(caction=='restore'){
									document.getElementById('status'+actionedIds[i]).innerHTML = 'Restored';
								}
							}
						}
					}
				}
				uncheckAllCheckbox('managemembers', caction);
				document.getElementById(caction).disabled = true;
				document.getElementById(caction).className = 'buttonpaddingnothighlight';
			}
		}
	}
}

function uncheckAllCheckbox(form, caction){
	var len = document.forms[form].elements.length;
	for(i=0;i<len;i++){
		if(document.forms[form].elements[i].type=='checkbox'){
			if(document.forms[form].elements[i].checked){
				document.forms[form].elements[i].checked = false;
				if(caction=='delete'){
					document.forms[form].elements[i].onclick = function(){enableRestoreDelete(3);}
				}else if(caction=='restore'){
					document.forms[form].elements[i].onclick = function(){enableRestoreDelete(1);}
				}
			}
		}
	}
}

function uncheckAllCheckboxDeleteRestore(form, caction){
	var len = document.forms[form].elements.length;
	for(i=0;i<len;i++){
		if(document.forms[form].elements[i].type=='checkbox'){
			if(document.forms[form].elements[i].checked){
				document.forms[form].elements[i].checked = false;
				if(caction=='delete'){
					document.forms[form].elements[i].onclick = function(){enableDisableRestoreDelete(2);}
				}else if(caction=='restore'){
					document.forms[form].elements[i].onclick = function(){enableDisableRestoreDelete(1);}
				}
			}
		}
	}
}

function deleteRestoreStuff(caction){
	document.deleterestore.performaction.value = caction;
	pst = getParams('deleterestore');

	reqP = makeheaderRequest(pst, requestUrlForAction+'deleterestorestuff.php');
	reqP.onreadystatechange = showdeletedsuccess;	
	function showdeletedsuccess(){
		if (reqP.readyState == 4){
			if (reqP.status == 200){
				jsonRetVal = reqP.responseText;				
				var retArr = jsonRetVal.split('|');
				if(retArr[0]==1){
					if((retArr[1]!='')){
						var temp = retArr[1];
						var actionedIds = temp.split(',');
						for(var i=0;i<actionedIds.length;i++){
							if(document.getElementById('status'+actionedIds[i])){
								if(caction=='delete'){
									document.getElementById('status'+actionedIds[i]).innerHTML = 'Deleted';
								}else if(caction=='restore'){
									document.getElementById('status'+actionedIds[i]).innerHTML = 'Restored';
								}
							}
						}
					}
				}
				uncheckAllCheckboxDeleteRestore('deleterestore', caction);
				document.getElementById(caction).disabled = true;
				document.getElementById(caction).className = 'buttonpaddingnothighlight';
			}
		}
	}
}

function deleteRestoreWant(caction){
	document.deleterestore.performaction.value = caction;
	pst = getParams('deleterestore');
	reqP = makeheaderRequest(pst, requestUrlForAction+'deleterestorewant.php');
	reqP.onreadystatechange = showdeletedsuccess;	
	function showdeletedsuccess(){
		if (reqP.readyState == 4){
			if (reqP.status == 200){
				jsonRetVal = reqP.responseText;					
				var retArr = jsonRetVal.split('|');				
				if(retArr[0]==1){
					if((retArr[1]!='')){
						var temp = retArr[1];
						var actionedIds = temp.split(',');
						for(var i=0;i<actionedIds.length;i++){
							if(document.getElementById('status'+actionedIds[i])){
								if(caction=='delete'){
									document.getElementById('status'+actionedIds[i]).innerHTML = 'Deleted';
								}else if(caction=='restore'){
									document.getElementById('status'+actionedIds[i]).innerHTML = 'Restored';
								}
							}
						}
					}
				}
				uncheckAllCheckboxDeleteRestore('deleterestore', caction);
				document.getElementById(caction).disabled = true;
				document.getElementById(caction).className = 'buttonpaddingnothighlight';
			}
		}
	}
}

function deleteImage(){
	var pst = '';
	pst = getParams('editstuff');

	reqP = makeheaderRequest(pst, requestUrlForAction+'deleteimage.php');
	reqP.onreadystatechange = showdeletedsuccess;

	function showdeletedsuccess(){
		if (reqP.readyState == 4){
			if (reqP.status == 200){
				jsonRetVal = reqP.responseText;				
				if(jsonRetVal=='deleted'){	
					document.getElementById('imageDisp').style.display = 'none';					
				}				
			}
		}
	}
	return false;
}