isDOM=(document.getElementById)?true:false
isOpera=isOpera5=window.opera && isDOM
isOpera6=isOpera && window.print
isOpera7=isOpera && navigator.userAgent.indexOf("Opera 7") > 0 || navigator.userAgent.indexOf("Opera/7") >= 0
isMSIE=isIE=document.all && document.all.item && !isOpera
isNC=navigator.appName=="Netscape"
isNC4=isNC && !isDOM
isNC6=isMozilla=isNC && isDOM

function getWindowWidth(w){
  if(!w) w=self
  if(isMSIE) return w.document.body.clientWidth
  if(isNC || isOpera) return w.innerWidth
}

function calcPosition() {
	var winW = getWindowWidth()
	var newP = Math.round(winW - (winW-760)/2)
	var el
	var offset = 0

	// big servers pictures
	if(winW < 760) newP = 760

	// header background
	offset = 760
	if(el = document.getElementById("hdbg")) el.style.left = newP - offset

	// big servers

	offset = 310
	if(el = document.getElementById("picbox00")) el.style.left = newP - offset

	// small servers
	offset = 210
	if(el = document.getElementById("picbox01")) el.style.left = newP - offset

	// logo
	offset = 715
	if(el = document.getElementById("logobox")) el.style.left = newP - offset

	// left pane
	offset = 760
	if(el = document.getElementById("leftpane")) el.style.left = newP - offset

	// menu area
	offset = 479
	if(el = document.getElementById("menubox")) el.style.left = newP - offset

	// menu area for billing
	offset = 760
	if(el = document.getElementById("menuboxB")) el.style.left = newP - offset

	// plans area
	offset = 479
	if(el = document.getElementById("plansbox")) el.style.left = newP - offset

	// text area
	offset = 465
	if(el = document.getElementById("textbox00")) el.style.left = newP - offset
	if(el = document.getElementById("textbox01")) el.style.left = newP - offset

	// text area for billing
	offset = 760
	if(el = document.getElementById("textboxB")) el.style.left = newP - offset

	offset = 479
	if(el = document.getElementById("textbox02")) el.style.left = newP - offset

	// footer area
	offset = 760
	if(el = document.getElementById("footerbox")) el.style.left = newP - offset

}

function showBigPic() {
	calcPosition()

	var el
	if(el = document.getElementById("hdbg")) 		el.style.display = "block";
	if(el = document.getElementById("picbox00")) 	el.style.display = "block";
	if(el = document.getElementById("picbox01")) 	el.style.display = "block";
	if(el = document.getElementById("logobox")) 	el.style.display = "block";
	if(el = document.getElementById("leftpane")) 	el.style.display = "block";
	if(el = document.getElementById("menubox")) 	el.style.display = "block";
	if(el = document.getElementById("menuboxB")) 	el.style.display = "block";
	if(el = document.getElementById("plansbox")) 	el.style.display = "block";
	if(el = document.getElementById("textbox00")) 	el.style.display = "block";
	if(el = document.getElementById("textbox01")) 	el.style.display = "block";
	if(el = document.getElementById("textbox02")) 	el.style.display = "block";
	if(el = document.getElementById("textboxB")) 	el.style.display = "block";
	if(el = document.getElementById("footerbox")) 	el.style.display = "block";
	if(el = document.getElementById("bl")) 			el.style.display = "block";
}

// preloading images
if (document.images) {

 iDomeny_on = new Image(); iDomeny_on.src = "/images/menubox-domeny-sel.gif"
 iDomeny_off = new Image(); iDomeny_off.src = "/images/menubox-domeny.gif"
 iHosting_on = new Image(); iHosting_on.src = "/images/menubox-hosting-sel.gif"
 iHosting_off = new Image(); iHosting_off.src = "/images/menubox-hosting.gif"
 iOplata_on = new Image(); iOplata_on.src = "/images/menubox-oplata-sel.gif"
 iOplata_off = new Image(); iOplata_off.src = "/images/menubox-oplata.gif"
 iKontakty_on = new Image(); iKontakty_on.src = "/images/menubox-kontakty-sel.gif"
 iKontakty_off = new Image(); iKontakty_off.src = "/images/menubox-kontakty.gif"
}

function handleOver(img) {
 if (document.images) document.images[img].src = eval(img+'_on.src');
}

function handleOut(img) {
 if (document.images) document.images[img].src=eval(img+'_off.src');
}

function openwin(url,w,h)
{
	if(h == undefined)
	   window.open(url, "", w);
	else
           window.open(url, "", "toolbar=no, status=no, width="+w+", height="+h+", scrollbars=yes, resizable=yes");
}

function checkdm(f)
{


  if ((f.ndomen.value.replace(/\s/g, "") != "") && (f.ch.value == 1)) {
    openwin('/billing/check.php?domen='+f.ndomen.value.replace(/\s/g, "")+f.zdomen.value,'scrollbars=no,width=400,height=250');
    return false;
  }
}