function MM_swapImgRestore() 
{ //v3.0
    var i,x,a=document.MM_sr; 
    
    for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) 
        x.src=x.oSrc;
}

function MM_preloadImages() 
{ //v3.0
    var d=document; 
  
    if(d.images)
    { 
        if(!d.MM_p) 
            d.MM_p=new Array();
    
        var i,j=d.MM_p.length,a=MM_preloadImages.arguments; 
        
        for(i=0; i<a.length; i++)
            if (a[i].indexOf("#")!=0)
            { 
                d.MM_p[j]=new Image; 
                d.MM_p[j++].src=a[i];
            }
    }
}

function MM_findObj(n, d) 
{ //v4.01
    var p,i,x;  
    
    if(!d) 
        d=document; 
        
    if((p=n.indexOf("?"))>0&&parent.frames.length) 
    {
        d=parent.frames[n.substring(p+1)].document; 
        n=n.substring(0,p);
    }
    
    if(!(x=d[n])&&d.all) 
        x=d.all[n]; 
     
    for (i=0;!x&&i<d.forms.length;i++) 
        x=d.forms[i][n];
        
    for(i=0;!x&&d.layers&&i<d.layers.length;i++) 
        x=MM_findObj(n,d.layers[i].document);
        
    if(!x && d.getElementById) 
        x=d.getElementById(n); 
   
    return x;
}


function MM_swapImage() 
{ //v3.0
    var i,j=0,x,a=MM_swapImage.arguments; 
    
    document.MM_sr=new Array; 
    
    for(i=0;i<(a.length-2);i+=3)
        if ((x=MM_findObj(a[i]))!=null)
        {
            document.MM_sr[j++]=x; 
            if(!x.oSrc) 
                x.oSrc=x.src; 
                
            x.src=a[i+2];
        }
}



function show_hide_field( field_id )
{
    var field_name;
    var disp;
    
    field_name = field_id+'_1';
    
    disp = getCurrentStyle( field_name, 'display' );
 
    el = document.getElementById(field_name);
    if ( el )
    {
        if ( disp == 'none')
             show_field( field_id );
        else
             hide_field( field_id );
    }
}


function show_field( field_id )
{
    var display_label;
    var num =1;
    
    
    if (document.all) // jesli prawda to mamy IE
       display_label= 'block';
    else
       display_label = 'table';
    
    field_name = field_id+'_1';
    
    el = document.getElementById(field_name);
    while ( el )
    {       
        el.style.display = display_label;
        num++;
        field_name = field_id+'_'+num;
        el = document.getElementById(field_name);
    }
}


function hide_field( field_id )
{
    var num =1;
    
    field_name = field_id+'_1';
    
    el = document.getElementById(field_name);
    while ( el )
    {       
        el.style.display = 'none';
        num++;
        field_name = field_id+'_'+num;
        el = document.getElementById(field_name);
    }
}

function getCurrentStyle(id, prop){
                var val, cst;
                var ele=document.getElementById(id);
                if(ele.currentStyle){ //IE
                        val=eval('ele.currentStyle.'+prop);
                }else{ //DOM
                        cst=document.defaultView.getComputedStyle(ele, "");
                        val=cst.getPropertyValue(prop);
                }
                return val;
        }