function textCounter(field, countfield, maxlimit) {
if (field.value.length > maxlimit) // if too long...trim it!
field.value = field.value.substring(0, maxlimit);
// otherwise, update 'characters left' counter
else 
countfield.value = maxlimit - field.value.length;
}

function show_confirm(text,urlok)
{
	var r=confirm(text);
	if (r==true)
	  {
	  window.location.href=urlok;
	  }
}

function show_confirm_form(text)
{
	var r=confirm(text);
	
	if (r==true)
	  {
	 	document.viewzbozi_form.submit()
	  }
	  
	
}
function dynamic_text_in_input_onkeyup (idobject,text,captcha)
{
	if(document.getElementById(idobject).value!='' && document.getElementById(idobject).value!=text){visibled(captcha,'yes');}else{visibled(captcha,'no');}
}
function dynamic_text_in_input_onfocus (idobject,text)
{
	if (document.getElementById(idobject).value==text) {document.getElementById(idobject).value='';}
}
function dynamic_text_in_input_onblur (idobject,text)
{
	if (document.getElementById(idobject).value=='') {document.getElementById(idobject).value=text;}
}

function noveokno (adresa1,width,height) { 
 var adresa = adresa1
 	window.open(adresa, "podkatfrm", "width="+width+",height="+height+",menubar=no,resizable=no,toolbar=yes,scrollbars=yes,left=100,top=100")
 	
 }
  
 function substr_count (haystack, needle, offset, length) {
    // http://kevin.vanzonneveld.net
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   bugfixed by: Onno Marsman
    // *     example 1: substr_count('Kevin van Zonneveld', 'e');
    // *     returns 1: 3
    // *     example 2: substr_count('Kevin van Zonneveld', 'K', 1);
    // *     returns 2: 0
    // *     example 3: substr_count('Kevin van Zonneveld', 'Z', 0, 10);
    // *     returns 3: false

    var pos = 0, cnt = 0;

    haystack += '';
    needle += '';
    if (isNaN(offset)) {offset = 0;}
    if (isNaN(length)) {length = 0;}
    offset--;

    while ((offset = haystack.indexOf(needle, offset+1)) != -1){
        if (length > 0 && (offset+needle.length) > length){
            return false;
        } else{
            cnt++;
        }
    }
    return cnt;
}
function explode (delimiter, string, limit) {
    // Splits a string on string separator and return array of components. If limit is positive only limit number of components is returned. If limit is negative all components except the last abs(limit) are returned.  
    // 
    // version: 1009.2513
    // discuss at: http://phpjs.org/functions/explode    // +     original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +     improved by: kenneth
    // +     improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +     improved by: d3x
    // +     bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)    // *     example 1: explode(' ', 'Kevin van Zonneveld');
    // *     returns 1: {0: 'Kevin', 1: 'van', 2: 'Zonneveld'}
    // *     example 2: explode('=', 'a=bc=d', 2);
    // *     returns 2: ['a', 'bc=d']
     var emptyArray = { 0: '' };
    
    // third argument is not required
    if ( arguments.length < 2 ||
        typeof arguments[0] == 'undefined' ||        typeof arguments[1] == 'undefined' ) {
        return null;
    }
 
    if ( delimiter === '' ||        delimiter === false ||
        delimiter === null ) {
        return false;
    }
     if ( typeof delimiter == 'function' ||
        typeof delimiter == 'object' ||
        typeof string == 'function' ||
        typeof string == 'object' ) {
        return emptyArray;    }
 
    if ( delimiter === true ) {
        delimiter = '1';
    }    
    if (!limit) {
        return string.toString().split(delimiter.toString());
    } else {
        // support for limit argument        var splitted = string.toString().split(delimiter.toString());
        var partA = splitted.splice(0, limit - 1);
        var partB = splitted.join(delimiter.toString());
        partA.push(partB);
        return partA;    }
}

function isKeyPressed(event)
{
	
if (event.shiftKey==1)
  {
   	return true;
   
  }
else
  {
  	return false;
  }
}
function keyPressHandler(e) {
     var keynum
	var keychar
	var numcheck
	
	if(window.event) // IE
	{
	keynum = e.keyCode
	}
	else if(e.which) // Netscape/Firefox/Opera
	{
	keynum = e.which
	}
	//alert(keynum);
	return keynum;
	
	
}

/*----------------------bookmark--------------*/
function bookmark()
{
	title = document.title; 
	url = document.URL;
	
	if (window.sidebar) { // Mozilla Firefox Bookmark
		window.sidebar.addPanel(title,url,"");
	} else if (window.external) { // IE Favorite
		window.external.AddFavorite(url,title);
	} else if (window.opera && window.print) {
    linkObj.title = addTitle;
    return true;
    } 
}

function hodnota (id)
{    
     if (document.getElementById(id)==null) alert(id);
	return document.getElementById(id).value;
}
/*------------url encode decode -----------*/
var Url = {
 
	// public method for url encoding
	encode : function (string) {
		return escape(this._utf8_encode(string));
	},
 
	// public method for url decoding
	decode : function (string) {
		return this._utf8_decode(unescape(string));
	},
 
	// private method for UTF-8 encoding
	_utf8_encode : function (string) {
		string = string.replace(/\r\n/g,"\n");
		var utftext = "";
 
		for (var n = 0; n < string.length; n++) {
 
			var c = string.charCodeAt(n);
 
			if (c < 128) {
				utftext += String.fromCharCode(c);
			}
			else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			}
			else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}
 
		}
 
		return utftext;
	},
 
	// private method for UTF-8 decoding
	_utf8_decode : function (utftext) {
		var string = "";
		var i = 0;
		var c = c1 = c2 = 0;
 
		while ( i < utftext.length ) {
 
			c = utftext.charCodeAt(i);
 
			if (c < 128) {
				string += String.fromCharCode(c);
				i++;
			}
			else if((c > 191) && (c < 224)) {
				c2 = utftext.charCodeAt(i+1);
				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
				i += 2;
			}
			else {
				c2 = utftext.charCodeAt(i+1);
				c3 = utftext.charCodeAt(i+2);
				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}
 
		}
 
		return string;
	}
 
}

function numbersonly(myfield, e, dec)
{
	var key;
	var keychar;
	
	if (window.event)
	   key = window.event.keyCode;
	else if (e)
	   key = e.which;
	else
	   return true;
	keychar = String.fromCharCode(key);
	
	// control keys
	if ((key==null) || (key==0) || (key==8) || 
	    (key==9) || (key==13) || (key==27) )
	   return true;
	
	// numbers
	else if ((("0123456789").indexOf(keychar) > -1))
	   return true;
	
	// decimal point jump
	else if (dec && (keychar == "."))
	   {
	   myfield.form.elements[dec].focus();
	   return false;
	   }
	else
	return false;
}