var picid = 0;

var folder = '';

var folders=new Array();

folders['galerija'] = 33;


 function showImg($id, $folder){ 
        folder = $folder;
        picid = $id;
		jQuery('.pic_big').attr('src','' + $folder + '/slika' +$id + '.jpg');
        jQuery('.pic_big').attr('id','pic' + $id);    
        jQuery('#MB_overlay').fadeIn(500);
        $this = jQuery('#pop');
        if ($this.attr('id') == 'pop'){  
            try{ 
                height = getPageHeight();
                scroll = getPageScroll();
                scrollvalue = scroll[1];
            } catch(e){
                height = 1000;
                scrollvalue = 0;
            }
            move = scrollvalue + (height / 20);
            if (!move){
            //Tony fix za ie
            move = event.clientY;
            }
        $this.css({
            top:move
        });
    }
    jQuery('#pop').fadeIn(500);
 }
 function next(){
    if(picid == folders[folder]){
        showImg(1, folder);
    }else{
        nextimg = parseInt(picid) + 1;
        showImg(nextimg, folder);
    }
 }
 function prev(){
    if(picid == 1){
        showImg(folders[folder], folder);
    }else{
        previmg = parseInt(picid) - 1;
        showImg(previmg, folder);
    }
 }
 function getPageScroll() {
    var xScroll, yScroll;
    if (self.pageYOffset) {
      yScroll = self.pageYOffset;
      xScroll = self.pageXOffset;
    } else if (document.documentElement && document.documentElement.scrollTop) {     // Explorer 6 Strict
      yScroll = document.documentElement.scrollTop;
      xScroll = document.documentElement.scrollLeft;
    } else if (document.body) {// all other Explorers
      yScroll = document.body.scrollTop;
      xScroll = document.body.scrollLeft;   
    }
    return new Array(xScroll,yScroll); 
  }

// Adapted from getPageSize() by quirksmode.com
function getPageHeight() {
    var windowHeight
    if (self.innerHeight) { // all except Explorer
      windowHeight = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
      windowHeight = document.documentElement.clientHeight;
    } else if (document.body) { // other Explorers
      windowHeight = document.body.clientHeight;
    }   
    return windowHeight
  }