/////////////////
// VARIABLES 
/////////////////
var preloaderBig = "<center><br><br><br><br><br><br>";
	preloaderBig = preloaderBig+"<img src='../images/loading-big.gif'><br><br><h3>Loading...</h3><br></center>";


////////////////////////////////////////////////////////////////////////
// used to refresh images
////////////////////////////////////////////////////////////////////////
function RefreshImage(object_id,name,path)
{
	var full_path = path+name;
	document.getElementById(object_id).src = "http://i.digitalpipelines.com/img/loading-big.gif";
	document.getElementById(object_id).src = full_path;
}


/////////////////////////////////////////////////////////////////////////
// main function, gets HTML from php script using predifined variables
/////////////////////////////////////////////////////////////////////////
function ajax_table_refresh(arguments)
{
	var target_div = "results";
	TradeData(file_name+"&"+arguments,target_div,preloaderBig);
	document.getElementById("messages").innerHTML = "";
	
}
/////////////////////////////////////////////////////////////////////////
// only if the page is realoaded, messages div will not be cleaned
/////////////////////////////////////////////////////////////////////////
function ajax_table_initialize()
{
	var target_div = "results";
	TradeData(file_name,target_div,preloaderBig);	
}

//////////////////////////////////////////////////////////////////////
// passes GET variables to the script and returns response text
//////////////////////////////////////////////////////////////////////
function DataTrade(vars,element_id,preloader)
{
	var xmlHttp = GetXmlHttpObject();
	var url=vars+"&sid="+Math.random();
	
	xmlHttp.onreadystatechange=function () 
	{ 	
		// when data comes back
		if (xmlHttp.readyState==4) 	
		{
			// if target was innerHTML of DOM id
			if (element_id != "") { 
				document.getElementById(element_id).innerHTML = xmlHttp.responseText;
			} else {
			// if only return of the value is needed
				return "";
			}
		} else if(preloader != "") { 
		// while waiting for data, will show preloader if needed
			document.getElementById(element_id).innerHTML = preloader; 
		}
	}
	xmlHttp.open("GET",url,true);	 
	xmlHttp.send(null);  
}





//////////////////////////////////
// gateway to php
/////////////////////////////////
function TradeData(vars,element_id,preloader)
{
	var xmlHttp = GetXmlHttpObject();
	var url=vars+"&sid="+Math.random();
	xmlHttp.onreadystatechange=function () 
	{ 	
		if ((xmlHttp.readyState==4)&&(element_id!="")) 	
		{ document.getElementById(element_id).innerHTML = xmlHttp.responseText;	delete xmlHttp;}	
		else if(preloader!="") { document.getElementById(element_id).innerHTML = preloader; }
	}
	xmlHttp.open("GET",url,true);	 xmlHttp.send(null);  
}

			// internal AJAX function
			function GetXmlHttpObject()
			{
			var xmlHttp=null;
			try { xmlHttp=new XMLHttpRequest(); } // Firefox, Opera 8.0+, Safari
			catch (e)  {  // Internet Explorer
			try { xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); }
			catch (e) { xmlHttp=new ActiveXObject("Microsoft.XMLHTTP"); } }
			return xmlHttp;
			}

/////////////////////////////////
// replaces characters
/////////////////////////////////
function ReplaceChars(entry,out,add) {
temp = "" + entry;

while (temp.indexOf(out)>-1) {
pos= temp.indexOf(out);
temp = "" + (temp.substring(0, pos) + add + 
temp.substring((pos + out.length), temp.length));
}
return(temp);
}

/////////////////////////////////
// replaces those characters that can't be passed in the url without parsing
/////////////////////////////////
function SafeInput(entry) {
	// encoding + sign
	entry = ReplaceChars(entry,"+","%2B");
	// encoding & sign
	entry = ReplaceChars(entry,"&","%26");
	// encoding = sign
	entry = ReplaceChars(entry,"&","%3d");

	return(entry);
}

///////////////////////////
// hides object
///////////////////////////
function Hide(id)
{ document.getElementById(id).style.display = "none"; }

//////////////////////////
// unhides object as a block
//////////////////////////
function ShowBlock(id)
{ document.getElementById(id).style.display = "block"; }

///////////////////////////
// unhides object as inline
///////////////////////////
function ShowInline(id)
{ document.getElementById(id).style.display = "inline"; }

///////////////////////////
// switches between "block" and "none" values for display property
///////////////////////////
function ToogleBlock(id)
{
	var style2 = document.getElementById(id).style;
	if (style2.display == "none") { style2.display = "block"; }
	else { style2.display = "none"; }
}

/////////////////////////////
// switches between "inline" and "none" values for display property 
/////////////////////////////
function ToogleInline(id)
{
	var style2 = document.getElementById(id).style;
	if (style2.display == "none") { style2.display = "inline"; }
	else { style2.display = "none"; }
}
/////////////////////////////////////////////
// returns droplist option id
/////////////////////////////////////////////
function DroplistId(id) {
	return(document.getElementById(id).options[document.getElementById(id).selectedIndex].value);
}
////////////////////////////////////
// gets element value
////////////////////////////////////
function Value(id) {
	return(document.getElementById(id).value);
}

function ValueSet(id,value_new) {
	document.getElementById(id).value = value_new;
}

function ValueUse(id,id_source) {
	document.getElementById(id).value = document.getElementById(id_source).value;
}

function ValueSafe(id) {
	return(SafeInput(document.getElementById(id).value));
}

////////////////////////////////////
// gets element innerHTML
////////////////////////////////////
function Content(id) {
	return(document.getElementById(id).innerHTML);
}
/////////////////////////////////////
// changes inner HTML
/////////////////////////////////////
function ContentSet(id,content_new) {
	document.getElementById(id).innerHTML = content_new;
}

/////////////////////////////
// opens up new window
////////////////////////////
function NewWin(id,x,y) {
	if((x*1 == NaN) || (x == "")) x = 800;
	if((y*1 == NaN) || (y == ""))  y = 400;
	window.open("_popup.php?id="+id, "Langas", "resizable=yes,scrollbars=yes,status=no,menubar=yes,titlebar,height="+y+",width="+x+"");
}

/////////////////////////////
// redirects to specified address
/////////////////////////////
function GoTo(loc) { window.location.href = loc; }

////////////////////////////
// confirms action
////////////////////////////
function ConfirmAction(actionDescription,url)
	{  if(window.confirm("Are you sure you want "+actionDescription)){GoTo(""+url+"");}  	}
	
//////////////////////////////////////////////////////////////////////////////////
// on confirm executes another ajax action and outputs (if is set) success message
//////////////////////////////////////////////////////////////////////////////////
function ConfirmAjax(text,action,param,success_message)
{	
	conf = confirm(text); 
	if(conf == true) { eval(action+"('"+param+"')"); }
	if (typeof success_message != 'undefined')
	{ 
		document.getElementById('messages').innerHTML = 
			"<div class='success'>"+success_message+"</div>"; 
	}	
}

////////////////////////////
// gets user input via prompt
////////////////////////////
function EnterText(promptTitle,confirmText,url,defaultText)
{
	var answer = prompt (promptTitle,defaultText)
	if (answer != null) {ConfirmAction(confirmText+"\n\n "+answer,url+answer);}
}

/////////////////////////////////////////////
// checks whether email address is properly formated
//////////////////////////////////////////////
function CheckEmail(email)
{
	var testresults
	var str=email
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
	if (filter.test(str))
	testresults=true
	else{
	testresults=false
	}
	return (testresults)
}

/////////////////
//change the opacity for different browsers 
/////////////////
function ChangeOpac(object_id, opacity) {
    var object = document.getElementById(object_id).style; 
    object.opacity = (opacity / 100); 
    object.MozOpacity = (opacity / 100); 
    object.KhtmlOpacity = (opacity / 100); 
    object.filter = "alpha(opacity=" + opacity + ")"; 
}



////////////////// for items
function save_item_updates(item_id)
{
	// preparing vars
	var name = SafeInput(document.getElementById('name_'+item_id).value);
	var url = SafeInput(document.getElementById('url_'+item_id).value);
	var preloader = '<img src="http://i.digitalpipelines.com/img/loading-small.gif" height="16">';	
	
	// preparing query
	var query = 'misc-menu_.php?&update='+item_id+'&name='+name+'&url='+url;


	// restoring input fields to normal style
	document.getElementById("name_"+item_id).style.border = "1px solid #7B9EBD";
	document.getElementById("name_"+item_id).style.padding = "1px";
	document.getElementById("url_"+item_id).style.border = "1px solid #7B9EBD";
	document.getElementById("url_"+item_id).style.padding = "1px";
	
	// passing via AJAX
	DataTrade(query,'status_'+item_id,preloader);
	
	// different AJAX usage depending item level
	if (document.getElementById("url_"+item_id).style.display == "none") {
		DataTrade(query,'','');
	} else { 
		DataTrade(query,'status_'+item_id,preloader);
	}
}