var et, tr, root;
var cba = "#EAEAEA";

function fl(hr){location.href=hr;}
function ShowFoto(img,par){	if (!root) root='';	ad(root+'/img.php?img='+img+'&root='+root+'&par='+par)}
function ad(url) {
	if (document.getElementById('ax111')) document.body.removeChild(document.getElementById('ax111'));
	var jsel = document.createElement('SCRIPT');
	jsel.type = 'text/javascript';
	jsel.id = 'ax111';
	jsel.src = url;
	document.body.appendChild(jsel);
}
function SizeMe() {
	var f = document.getElementById('i777');
	var fd = document.getElementById('d777');
	if (f.width>200) fd.innerHTML='<a href=\'javascript:ShowFoto("'+f.src+'")\'><img src="'+f.src+'" alt="'+f.alt+'" title="'+f.alt+'" width="200"></a>';
}
function null_item(obj) {
		document.getElementById(obj).value=0;
		document.order.submit();
}
function check_fill(obj,mail,conf) {
	if (conf && !confirm(conf)) return false;
	et=0;
	for (i=0;i<obj.length;i++) {
		o = obj[i];
		if (o.value.length == 0) {
			 et=1;
			 o.style.backgroundColor=cba;
		}
		else 
			 o.style.backgroundColor="";
	}
	if (mail!='' && mail!=undefined && mail.value.length > 0) {
		CheckEmail(mail.value)
		if (!tr) {
			mail.style.backgroundColor=cba; 
			return false;
		}
	}
	if (et) {
		if (document.getElementById('orderform')) document.getElementById('orderform').innerHTML = 'Označené položky musí být vyplněny! ';
		return false;
	}
}

function CheckEmail(field){
	var str=field
	var filter=/^.+@.+\..{2,4}$/
	if (filter.test(str)) tr=true;
	else tr=false;
}
function chv(obj,nova,old) {if (obj.value==old) obj.value = nova; }

function cart_arr(ids,val) {
	i = val.indexOf('... ');
	if (i>0) {
		val = val.substring(i+4);
		document.getElementById('pcs'+ids).value = val;	
	}
	else document.getElementById('pcs'+ids).value = 0;
}
function sendlink() {location.href='?sendlink=1' }