function NewsletterCheckAll()
{
	NewsletterCheck();
}
function NewsletterUnCheck()
{
	var ChecksTab=document.getElementsByTagName('input');
	for(i=0;i<ChecksTab.length;i++)
	{
		var id=ChecksTab[i].id;
		if(id && id.length>0)
		{
			if(id.indexOf('cblLista')>0)
			ChecksTab[i].checked=false;
		}
	}
}
function NewsletterCheck()
{
	
	var ChecksTab=document.getElementsByTagName('input');
	for(i=0;i<ChecksTab.length;i++)
	{
		var id=ChecksTab[i].id;
		if(id && id.length>0)
		{
			if(id.indexOf('cblLista')>0)
			ChecksTab[i].checked=true;
		}
	}
}

function PokazHistorie() 
{
    var tab=document.getElementById('TabelaHistoriZmian');
    var lnk=document.getElementById('PokazZmiany');
    if (tab && lnk) 
    {
        if (tab.style.display=='none' || tab.style.display=='') 
        {
            tab.style.display='block';
            lnk.innerText='Ukryj rejestr zmian na stronie';
        } 
        else 
        {
            tab.style.display='none';
            lnk.innerText='Rejestr zmian na stronie';
        }
    }
}

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

}
function addUnderscores()
    {
        var input1=document.getElementById("VIEWSTATE");
        if (input1) input1.id="__VIEWSTATE";
        var input2=document.getElementById("EVENTVALIDATION");
        if (input2) input2.id="__EVENTVALIDATION";
        var input3=document.getElementById("EVENTTARGET");
        if (input3) input3.id="__EVENTTARGET";
        var input4=document.getElementById("EVENTARGUMENT");
        if (input4) input4.id="__EVENTARGUMENT";
        var input5=document.getElementById("REQUESTDIGEST");
        if (input5) input5.id="__REQUESTDIGEST";
        var input6=document.getElementById("SPSCEditMenu");
        if (input6) input6.id="__SPSCEditMenu";
       var input7=document.getElementById("PREVIOUSPAGE");
        if (input7) input7.id="__PREVIOUSPAGE";
   	}