function smazOdberMail()
{
	document.getElementById('odber_mail').value = '';
}


function on_blur(id)
{
	if(document.getElementById(id))
	{
	   document.getElementById(id).style.backgroundColor = "#ffffff";
	}
}

function on_focus(id)
{
	if(document.getElementById(id))
	{
	   document.getElementById(id).style.backgroundColor = "#daefd6";	/* ffffcc */
	}

}

function nove_okno(adresa)
{
	window.open(adresa,"","");
}

function vloz(text)
{ 
	document.getElementById('prispevek').value = document.getElementById('prispevek').value + text
}

function HideInfo(id){
	document.getElementById(id).style.display='none';
}

function winH(){
	/* NN4 a kompatibiln prohlee */
	if (window.innerHeight)
		return window.innerHeight;
	/* MSIE6 v std. reimu - Opera a Mozilla ji usply s window.innerHeight */

	else if (document.documentElement && document.documentElement.clientHeight)

		return document.documentElement.clientHeight;

	/* star MSIE + MSIE6 v quirk reimu */

	else if (document.body && document.body.clientHeight)

		return document.body.clientHeight;

	else

		return null;

}



function winW(){

	/* NN4 a kompatibiln prohlee */

	if (window.innerWidth)

		return window.innerWidth;

	/* MSIE6 v std. reimu - Opera a Mozilla ji usply s window.innerHeight */

	else if (document.documentElement && document.documentElement.clientWidth)

		return document.documentElement.clientWidth;

	/* star MSIE + MSIE6 v quirk reimu */

	else if (document.body && document.body.clientWidth)

		return document.body.clientWidth;

	else

		return null;

}



function Okno(width,height,scrollbars,url,relative_paths)
{
	var rp = '';
	
	if(relative_paths) rp = relative_paths;

	posX = (winW()/2)-(width/2);
	posY = (winH()/2)-(height/2);

	add=window.open(rp + "popup.php?filename="+url,"add","left="+posX+",top="+posY+",width="+width+",height="+height+",menubar=no,directories=no,toolbar=no,location=no,status=no,scrollbars="+scrollbars+",resizable=yes");
	add.focus();
}



function NewWin(url,name,width,height,scrollbars) {

	posX = (winW()/2)-(width/2);

	posY = (winH()/2)-(height/2);

	add=window.open(url,name,"left="+posX+",top="+posY+",width="+width+",height="+height+",menubar=no,directories=no,toolbar=no,location=no,status=no,scrollbars="+scrollbars+",resizable=yes");

	add.focus();

}



function VyskakovaciOkno(width, height, scrollbars, url)

{

	posX = (winW()/2)-(width/2);

	posY = (winH()/2)-(height/2);

	add = window.open(url, "add", "left="+posX+", top="+posY+", width="+width+", height="+height+", menubar=no,directories=no,toolbar=no,location=no,status=no,scrollbars="+scrollbars+",resizable=yes");

	add.focus();

}



function MenuUkaz(id_menu)

{

	if(document.getElementById('li_menu_' + id_menu))

	{

	   document.getElementById('li_menu_' + id_menu).style.display = "block";

	}

}



function MenuZkryt(id_menu)

{

	if(document.getElementById('li_menu_' + id_menu))

	{

	   document.getElementById('li_menu_' + id_menu).style.display = "none";

	}

}