function popup_open(i){
	
	var element = document.getElementById('news_'+i);
	var n=0;
	
	element.style.display = "block";

	function ligth(){
		n += 0.1;
		element.style.opacity = n;
		element.style.filter = "alpha(opacity="+n*100 + ")";
		if(n >= 1){
			clearInterval(Int);
		}
	}

	Int = setInterval(ligth,60);

}
var start = 0;
function popup_close(i){

	var element = document.getElementById('news_'+i);
	var n = 1;
	function ligth(){
		start = 1;
		n -= 0.1;
		element.style.opacity = n;
		element.style.filter = "alpha(opacity="+n*100 + ")";
		if(n <= 0){
			clearInterval(Int);
			element.style.display = "none";
			start = 0;
		}
	}
	
	if(start == 0){
		Int = setInterval(ligth,60);
	}
	//alert(start);
/*
  	element.style.display = "none";
  	element.style.opacity = 0;
	element.style.filter = "alpha(opacity=0)";
*/
}


for(i=2;i<8;i++){
	document.getElementById('katalog_'+i).style.display = 'none';
}

function hidden(){
	for(i=1;i<8;i++){
		
		element = document.getElementById('katalog_'+i);
		element.style.display = 'none';
	
	}

}

function display_zajezd(id) {
		tab3 = "stin_dole2_"+id;
		stin2 = document.getElementById(tab3).style;
		tab2 = "stin_dole_"+id;
		stin = document.getElementById(tab2).style;
        tab = "pp_"+id;
        tb = document.getElementById(tab).style;
        if (tb.visibility == "visible") {
               tb.visibility = "hidden";
               tb.display = "none";
			   stin.visibility = "visible";
			   stin.display = "block";
			   stin2.visibility = "hidden";
			   stin2.display = "none";
			   temp=document.getElementById("zajezd_nahled_id"+id).getElementsByTagName("div");
  			 temp2=document.getElementById("zajezd_nahled_id"+id).getElementsByTagName("span");
			   document.getElementById("zajezd_nahled_id"+id).style.width="300px";
			   document.getElementById("zajezd_nahled_id"+id).firstChild.style.width="300px";
         for (i=0; i<temp2.length; i++) {
			     if (temp2[i].className=="vice_info") temp2[i].innerHTML="Program zájezdu a přehled termínů >>";
         }
         for (i=0; i<temp.length; i++) {
          switch (temp[i].className){
          case "kratky_popis":
            temp[i].style.width="265px";
          break;
          case "popis":
            temp[i].style.width="275px";
          break;
          }
         }
        } else {
                tb.visibility = "visible";
                tb.display = "block";
				stin.visibility = "hidden";
				stin.display = "none";
				stin2.visibility = "visible";
			    stin2.display = "block";
			  temp=document.getElementById("zajezd_nahled_id"+id).getElementsByTagName("div");
 			  temp2=document.getElementById("zajezd_nahled_id"+id).getElementsByTagName("span");
			  document.getElementById("zajezd_nahled_id"+id).style.width="620px";
			  document.getElementById("zajezd_nahled_id"+id).firstChild.style.width="610px";
			   for (i=0; i<temp2.length; i++) {
			     if (temp2[i].className=="vice_info") temp2[i].innerHTML="<< Skrýt program zájezdu";
         }
         for (i=0; i<temp.length; i++) {
          switch (temp[i].className){
          case "kratky_popis":
            temp[i].style.width="560px";
          break;
          case "popis":
            temp[i].style.width="560px";
          break;
          }
         }
        }
}

function show(n){
	
	hidden();
	
	element = document.getElementById('katalog_'+n);
	element.style.display = 'block';

}

function border_plan_on(i){
	
	plan_img = document.getElementById('plan_'+i);
	plan_img.style.borderColor = "#666666";

}

function border_plan_off(i){
	
	plan_img = document.getElementById('plan_'+i);
	plan_img.style.borderColor = "#CCCCCC";

}

function YY_checkform() { //v4.71
//copyright (c)1998,2002 Yaromat.com
  var a=YY_checkform.arguments,oo=true,v='',s='',err=false,r,o,at,o1,t,i,j,ma,rx,cd,cm,cy,dte,at;
  for (i=1; i<a.length;i=i+4){
    if (a[i+1].charAt(0)=='#'){r=true; a[i+1]=a[i+1].substring(1);}else{r=false}
    o=MM_findObj(a[i].replace(/\[\d+\]/ig,""));
    o1=MM_findObj(a[i+1].replace(/\[\d+\]/ig,""));
    v=o.value;t=a[i+2];
    if (o.type=='text'||o.type=='password'||o.type=='hidden'){
      if (r&&v.length==0){err=true}
      if (v.length>0)
      if (t==1){ //fromto
        ma=a[i+1].split('_');if(isNaN(v)||v<ma[0]/1||v > ma[1]/1){err=true}
      } else if (t==2){
        rx=new RegExp("^[\\w\.=-]+@[\\w\\.-]+\\.[a-zA-Z]{2,4}$");if(!rx.test(v))err=true;
      } else if (t==3){ // date
        ma=a[i+1].split("#");at=v.match(ma[0]);
        if(at){
          cd=(at[ma[1]])?at[ma[1]]:1;cm=at[ma[2]]-1;cy=at[ma[3]];
          dte=new Date(cy,cm,cd);
          if(dte.getFullYear()!=cy||dte.getDate()!=cd||dte.getMonth()!=cm){err=true};
        }else{err=true}
      } else if (t==4){ // time
        ma=a[i+1].split("#");at=v.match(ma[0]);if(!at){err=true}
      } else if (t==5){ // check this 2
            if(o1.length)o1=o1[a[i+1].replace(/(.*\[)|(\].*)/ig,"")];
            if(!o1.checked){err=true}
      } else if (t==6){ // the same
            if(v!=MM_findObj(a[i+1]).value){err=true}
      }
    } else
    if (!o.type&&o.length>0&&o[0].type=='radio'){
          at = a[i].match(/(.*)\[(\d+)\].*/i);
          o2=(o.length>1)?o[at[2]]:o;
      if (t==1&&o2&&o2.checked&&o1&&o1.value.length/1==0){err=true}
      if (t==2){
        oo=false;
        for(j=0;j<o.length;j++){oo=oo||o[j].checked}
        if(!oo){s+='* '+a[i+3]+'\n'}
      }
    } else if (o.type=='checkbox'){
      if((t==1&&o.checked==false)||(t==2&&o.checked&&o1&&o1.value.length/1==0)){err=true}
    } else if (o.type=='select-one'||o.type=='select-multiple'){
      if(t==1&&o.selectedIndex/1==0){err=true}
    }else if (o.type=='textarea'){
      if(v.length<a[i+1]){err=true}
    }
    if (err){s+='* '+a[i+3]+'\n'; err=false}
  }
  if (s!=''){alert('The required information is incomplete or contains errors:\t\t\t\t\t\n\n'+s)}
  document.MM_returnValue = (s=='');
}

function ValidatorChat(theForm){ 
  if (theForm.od_jmeno.value == ""){ 
    alert("Nevyplnili jste pole \"Od (vaše jméno)\".");
    theForm.od_jmeno.focus();
    return (false);
  }
  if (theForm.titulek.value == ""){ 
    alert("Nevyplnili jste pole \"Titulek\".");
    theForm.titulek.focus();
    return (false);
  }
  /*if (theForm.od_mail.value != ""){ 
    txt=document.theForm.od_mail.value.toLowerCase();
    if (txt.indexOf("@")<1){
      alert("Emailova adresa neni zadana spravne. Zkontrolujte prosim '@' znak.");
      theForm.od_mail.focus();
      return (false);
    }
    if (txt.indexOf(".")<1){
      alert("Emailova adresa neni zadana spravne. Zkontrolujte prosim narodni domenu (.cz, .sk, .com, .net, atd).");
      theForm.od_mail.focus();
      return (false);
    }
  }else{
    alert("Nevyplnili jste pole \"E-mail\".");
    theForm.od_mail.focus();
    return (false);
  }*/
  
  if (theForm.text.value == ""){ 
    alert("Nevyplnili jste pole \"Text příspěvku\".");
    theForm.text.focus();
    return (false);
  }
  if (theForm.kod_obr.value == ""){ 
    alert("Opište kontrolní kód.");
    theForm.kod_obr.focus();
    return (false);
  }

  return (true);
}