function loadScript(url, callback){
 
    var script = document.createElement("script")
    script.type = "text/javascript";
	if (!callback) callback = function(){};
 
    if (script.readyState){  //IE
        script.onreadystatechange = function(){
            if (script.readyState == "loaded" ||
                    script.readyState == "complete"){
                script.onreadystatechange = null;
                callback();
            }
        };
    } else {  //Others
        script.onload = function(){
            callback();
        };
    }
 
    script.src = url;
    document.getElementsByTagName("head")[0].appendChild(script);
}

function ask(question, location)
{
	if (confirm(question))
		document.location.href = location;
}

function set_all(element, check)
{
	var elems = new Array();
	elems=document.getElementsByTagName("input");

	for (i = 0 ; i < elems.length ; i++)
	{ 
		if (elems[i].className == element)
		{
			$(elems[i].id).checked = check;
		}
	}
}

function getElementsByClassName(cn)
{
  var arr = new Array(); 
  var els = document.getElementsByTagName("*");
  var exp= new RegExp("^(.* )?"+cn+"( .*)?$", "g");
  for (var i = 0; i < els.length; i++ ){
    if (exp.test(els[i].className)){
      arr.push(els[i]);
    }
  }
  return arr;
}

function selectAll(class_name, func)
{
	var elems = new Array();
	elems=getElementsByClassName(class_name);

	for (i = 0 ; i < elems.length ; i++)
	{
		func(elems[i].id);
	}
}

function roundIt(liczba, cyfr)
{
	zw = Math.pow(10, cyfr);
	ret = liczba * zw;
	po = Math.round(ret);
	po2 = po / zw;
	return po2;
}

function nb(num)
{	
	var re = /,/g;
	var num = num.replace(re,".");
	var re = / /g;
	var num = num.replace(re,"");
	
	return num;
}

function isset(varname)  {
  if(typeof( window[ varname ] ) != "undefined") return true;
  else return false;
}

function time_addDaysToDate(date, days)
{
	b = date.split("-");
	var d = new Date;
	d.setDate(b[2]);
	d.setMonth(b[1]-1);
	d.setFullYear(b[0]);
	d.setDate(d.getDate()+parseInt(days));
	month = d.getMonth();
	day = d.getDate();
	month = parseInt(month)+1;
	if (month<10) month = '0' + month;
	if (day<10) day = '0' + day;
	ret = d.getFullYear() + "-" + month + "-" + day;
	return ret;
}

function downTime(div)
{
	time = $(div).innerHTML;
	tims = time.split(':');

	hour = (tims[0] * 1);
	min = (tims[1] * 1);
	sec = (tims[2] * 1);

	sec = sec - 1;
	if (sec<0) { sec = sec + 60; min = min - 1; }
	if (min<0) { min = min + 60; hour = hour - 1; }
	if (hour<0) { hour = 0; min = 0; sec = 0; }

	if (sec<10) sec = '0'+sec;
	if (min<10) min = '0'+min;
	if (hour<10) hour = '0'+hour;

	timed = hour +':'+ min +':'+ sec;

	$(div).update(timed);
}

function Clock(div)
{
	time = $(div).innerHTML;
	tims = time.split(':');

	hour = (tims[0] * 1);
	min = (tims[1] * 1);
	sec = (tims[2] * 1);

	sec = sec + 1;
	if (sec>59) { sec = 0; min = min + 1; }
	if (min>59) { min = 0; hour = hour + 1; }
	if (hour>23) { hour = 0; }

	if (sec<10) sec = '0'+sec;
	if (min<10) min = '0'+min;
	if (hour<10) hour = '0'+hour;

	timed = hour +':'+ min +':'+ sec;

	$(div).update(timed);
}

var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{
			string: navigator.userAgent,
			subString: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Internet Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			   string: navigator.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();