//================================================
//general functions
//================================================
function validateEmail(email){
	var atpos = email.indexOf("@");
	var domain = email.substring(atpos,email.length);
	if(!(atpos > 0) || (domain.indexOf(".") == -1) || (domain.indexOf(".") == (domain.length-1)) || email.indexOf(" ")!=-1){
		return false;
	} else {
		return true;
	}
}


function showhide(div){
	if(!$(div))
		return;
	if($(div).style.display=="none")
		$(div).style.display = "block";
	else
		$(div).style.display = "none";
	
}

function show(div){
	if(!$(div))
		return;
	$(div).style.display = "block";	
}
function hide(div){
	if(!$(div))
		return;
	$(div).style.display = "none";	
}

function gotoField(div){
	if($(div))
		$(div).focus();	
}

function loadPage(url,waitdiv,loaddiv,postvars){
	if(postvars==null)
		vartype='get';
	else {
		vartype='post';
	}
		
	if(waitdiv==null)
		waitdiv = 'content_div';
	if(loaddiv==null || !$(loaddiv))
		loaddiv = waitdiv;
	if($(waitdiv)){
		$(waitdiv).innerHTML='<p align="center"><span style="display:block; height:100%; vertical-align:middle;">Please wait:<br /><img src="/graphics/connecting.gif"></span></p>';	
	}
	new Ajax(url, {
		evalScripts: true,
		update: loaddiv,
		method: vartype,
		postBody: postvars
		}).request();
}

function displayMessage(message,colour){
	if(colour==null){
		colour = "red";
	}
	$('message_space').innerHTML = "<div id='message'><div id='message_div'>"+message+"</div></div>";
	$('message_div').style.backgroundColor = colour;
	$('message_space').style.height = "auto";
}

function clearMessage(){
	$('message_space').innerHTML = "";
	$('message_space').style.height = "0";
}

function validateContact(){
	if($('cname').value==""){
		displayMessage("Please enter your name");
		$('cname').focus();
		return false;
	}
	
	if($('cemail').value!="" && !validateEmail($('cemail').value)){
		displayMessage("Please enter a valid email address i.e name@emailprovider.com");
		$('cemail').focus();
		return false;
	}
	
	if($('cemail').value == "" && $('cphone').value == ""){
		displayMessage("Please enter a valid phone number or email address");
		return false;
	}
	
	if($('cdetails').value==""){
		displayMessage("You must supply an enquiry");
		$('cdetails').focus();
		return false;
	}
	
	if($('cverify').value==""){
		displayMessage("Please enter the verification code.");
		$('cverify').focus();
		return false;
	}
}

function newVerify(){
	loadPage('core_verify.php', 'verify_div');	
}

function displayMessage(msg){
	alert(msg);	
}

function updateHTML(source, dest){
	$(dest).innerHTML = $(source).value;
}

function switchTab(tabs, selected){
	for(i=0; i<tabs.length; i++){
		$(tabs[i]+'_tab').className="";
		$(tabs[i]).style.display = 'none';
		if(tabs[i] == selected){
			$(tabs[i]+"_tab").className="current";
			$(tabs[i]).style.display = 'block';
		}
	}
}

function calculateFee(){
	if($('numWeekly').value=="" && $('numFortnightly').value=="" && $('numFourWeekly').value=="" && $('numMonthly').value==""){
		alert("Please enter the number of employees in each section and try again");
		return;
	}
	$('setupfee').innerHTML = "<img src='graphics/spinningloader.gif' />";
	$('monthlyfee').innerHTML = "<img src='graphics/spinningloader.gif' />";
	$('employeesfee').innerHTML = "<img src='graphics/spinningloader.gif' />";
	$('returnsfee').innerHTML = "<img src='graphics/spinningloader.gif' />";
	loadPage('content/calculateFee.php?weekly='+$('numWeekly').value+'&fortnightly='+$('numFortnightly').value+'&fourweekly='+$('numFourWeekly').value+'&monthly='+$('numMonthly').value, 'fee_result');	
}

function feeEnquiry(){
	param = "w="+$("numWeekly").value+"&f="+$("numFortnightly").value+"&fw="+$("numFourWeekly").value+"&m="+$("numMonthly").value+"&e="+$('totalestimate').value;
	MOOdalBox.open('content/fee_enquiry.php?'+param,'','400 345')
}

function includeSWF(div, url, width, height, extraparam){
	objectparams = "<param name='flashvars' value='"+extraparam+"' />";

	document.getElementById(div).innerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'+
			'width='+width+' height='+height+' id="movie_'+div+'"'+
			'codebase="http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab">'+
			'<param name="movie" value="'+url+'" />'+
			'<param name="quality" value="high" />'+
			'<param name="allowScriptAccess" value="sameDomain" />'+
			'<param name="allowFullScreen" value="true" />'+
			'<param name="wmode" value="transparent" />'+
			objectparams+
			'<embed src="'+url+'" quality="high" name="movie_'+div+'"'+
			'	width="'+width+'" height="'+height+'" align="middle"'+
			'	play="true"'+
			'	loop="false"'+
			'	quality="high"'+
			'	allowFullScreen="true"'+
			'	allowScriptAccess="sameDomain"'+
			'	type="application/x-shockwave-flash"'+
			'	flashvars="'+extraparam+'"'+
			'	wmode="transparent"'+
			'	pluginspage="http://www.adobe.com/go/getflashplayer">'+
			'</embed>'+
			'</object>';
}