function urlencode(string)
{
	return encodeURIComponent(string);
}

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

function endswith(string, end)
{
	return string.substr(string.length-end.length, end.length) == end;
}

function ajax_and_refresh(url,finished)
{
	var a = ajax();
	a.onreadystatechange=function()
	{
		if(a.readyState!=4) return;
		if(a.status!=200) return;
		if(finished)
			finished(a.responseText);
		window.location = window.location;
	}
	a.open("GET",url,true);
	a.send(null);
}

function doajax(url,finished)
{
	var a = ajax();
	a.onreadystatechange=function()
	{
		if(a.readyState!=4) return;
		if(a.status!=200) return;
		if(finished)
			finished(a.responseText);
	}
	a.open("GET",url,true);
	a.send(null);
}

function showpopup(parent,text,z,time)
{
	var a = document.createElement('div');
	a.className = 'popup';
	a.name = 'gran_popup';
	a.innerHTML = '<div style="font-size: 11px; margin-left: 20px; margin-top: 30px;">'+text+'</div>';
	if(z)
		a.style.zIndex = z;
	document.getElementById(parent).parentNode.appendChild(a);
	var t=3000;
	if(time) t = time;
	setTimeout(function(){a.parentNode.removeChild(a);},t);
	}

function clearpopups()
{
	var popups = document.getElementsByName('gran_popup');
	for(var i=0; i < popups.length; i++)
	{
		popups[i].parentNode.removeChild(popups[i]);
	}
}
	
this.onmousedown = function(e)
{
	clearpopups();
};

function show(id)
{
	var e = document.getElementById(id);
	if(e)
	{
		e.style.visibility = 'visible';
		e.style.display = '';
	}
}

function hide(id)
{
	var e = document.getElementById(id);
	if(e)
	{
		e.style.visibility = 'hidden';
		e.style.display = 'none';
	}
}

function toggle_show(id)
{
	var e = document.getElementById(id);
	if(e)
	{
		if(e.style.visibility != 'hidden')
		{
			e.style.visibility = 'hidden';
			e.style.display = 'none';
		}
		else
		{
			e.style.visibility = 'visible';
			e.style.display = '';
		}
	}
}

function popup(url,bgcolor)
{
	try
	{
		var e=document.getElementById('popup_content');
		doajax(url,function(response)
		{
			var a = '';
			var b = '';
			if(bgcolor)
			{
				a = '<div style="padding-bottom: 100px; width: 100%; height: 100%; background-color: '+bgcolor+';"><div style="margin-left: 25%; text-align: left; width: 60%; height: 100%; overflow: auto;">';
				b = '</div></div>';
			}
			e.innerHTML = a + response + b;
			show('popup');
			e.focus();
		});
	}
	catch(e)
	{
		alert(e);
	}
}

function trim(str, chars) {
	if(chars)
		return ltrim(rtrim(str, chars), chars);
	return ltrim(rtrim(str, ' '), ' ');
}
 
function ltrim(str, chars) {
	chars = chars || "\\s";
	return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
}
 
function rtrim(str, chars) {
	chars = chars || "\\s";
	return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
}

function popup(url,width,height)
{
	mywindow = window.open (url,"mywindow","location=0,status=0,scrollbars=1,width="+width+",height="+height);
//mywindow.moveTo(0,0);
}