if (screen.width<1024)
 document.write("	<style type=\"text/css\" media=\"screen\"> @import \"/images/800.css\"; </style>");
// JavaScript Document


function addrezerv (id_stul)
{
if ( document.forms[0].stoly.value != "") {	
		var seznam;
		var result;
		seznam = document.forms[0].stoly.value;
  	result = seznam+", "+id_stul+" ";
  }else {
	result = id_stul+" ";
	}
	
	return result
	
}

function delrezerv (id_stul) {
	var result;
	var seznam=document.forms[0].stoly.value;
			if (seznam.search(", "+id_stul+" ") != -1) {
			return result=seznam.replace(", "+id_stul+" ","");
			}
			if (seznam.search(" "+id_stul+" ,") != -1) {
			return result=seznam.replace(" "+id_stul+" ,","");
			}
			if (seznam.search(" "+id_stul+" ") != -1) {
			return result=seznam.replace(" "+id_stul+" ","");
			}
			

return result;
}

function jerezerv (id_stul) {
	var seznam=document.forms[0].stoly.value;
	if (seznam.search(" "+id_stul+" ") != -1) {
	return true
	}else{
	return false
	}
}

function rezerv (id_stul, pocet) {
var result;

if (document.forms[0].stoly.value != "") {
	if (jerezerv(id_stul)) {
		document['stul_'+id_stul].src='/images/stoly/'+id_stul+'.png';
		result =	delrezerv(id_stul);
		document.forms[0].pocet.value = Number(document.forms[0].pocet.value) - Number(pocet); 
		if (document.forms[0].pocet.value == "0") {
			document.forms[0].pocet.value = "";
		}
	}else{
		result =	addrezerv(id_stul);
		document['stul_'+id_stul].src='/images/stoly/'+id_stul+'-sel.png';
		document.forms[0].pocet.value = Number(document.forms[0].pocet.value) + Number(pocet); 
	}
} else {
	result = addrezerv(id_stul);
	document['stul_'+id_stul].src='/images/stoly/'+id_stul+'-sel.png';
	document.forms[0].pocet.value = pocet;
}

if (document.forms[0].stoly.value == "") {
document.forms[0].stoly.value = " "+result;
	}else {
	document.forms[0].stoly.value = result;
	}
	

}


function startujem()
{
    if (!document.getElementsByTagName)
	return false;
    document.forms[0].pocet.readOnly = true;
    document.forms[0].stoly.readOnly = true;
}

window.onload = startujem;