// JK Pop up image viewer script- By JavaScriptKit.com
// Visit JavaScript Kit (http://javascriptkit.com)
// for free JavaScript tutorials and scripts
// This notice must stay intact for use

var popbackground="lightskyblue" //specify backcolor or background image for pop window
var windowtitle="Image Window"  //pop window title

function detectexist(obj){
return (typeof obj !="undefined")
}

function jkpopimage(url, popwidth, popheight){

function getpos(){
leftpos=(detectexist(window.screenLeft))? screenLeft+document.body.clientWidth/2-popwidth/2 : detectexist(window.screenX)? screenX+innerWidth/2-popwidth/2 : 0
toppos=(detectexist(window.screenTop))? screenTop+document.body.clientHeight/2-popheight/2 : detectexist(window.screenY)? screenY+innerHeight/2-popheight/2 : 0
if (window.opera){
leftpos-=screenLeft
toppos-=screenTop
}
}

getpos()
var winattributes='width='+popwidth+',height='+popheight+',resizable=yes,menubar=yes, left='+leftpos+',top='+toppos
var bodyattribute=(popbackground.indexOf(".")!=-1)? 'background="'+popbackground+'"' : 'bgcolor="'+popbackground+'"'
if (typeof jkpopwin=="undefined" || jkpopwin.closed)
jkpopwin=window.open(url,"nazwa",winattributes)
else{
//getpos() //uncomment these 2 lines if you wish subsequent popups to be centered too
//jkpopwin.moveTo(leftpos, toppos)
jkpopwin.resizeTo(popwidth, popheight+30)
}
jkpopwin.focus();
}

function parseURL()
    {
      var str =window.location.search;
      if(parseURL.arguments.length == 1)
        str = parseURL.arguments[0];
      //if(str.length < 2)
      //  throw new Error('No aruments in URL');
      var arr = str.substring(1).split('&');
      var key = '';
      var val = '';
      for(var part in arr)
      {
        key = arr[part].split('=')[0];
        val = unescape(arr[part].substring(key.length + 1));
        this[key] = val;
      }
    }
    
    // usage: get from url: ?aa=bb&bb=cc
    //var _GET = new parseURL();
    //alert(_GET['aa']);                  // or alert(_GET.aa);
    // opcjonalnie var _GET = new parseURL('html:host/page.html?aa=bb&bb=bb'