var speed=30;
var nPlus=2;

var nOpac = -1;


function FadeImgIn(){
    if(parent.document.getElementById){
        parent.document.getElementById('glavna').style.visibility="visible";
        imgs = parent.document.getElementById('glavna');
	opacity = nOpac+nPlus;
	nOpac = opacity;
	
        if(opacity<100){
         setTimeout('FadeImgIn()',speed);
        }

        if(opacity>100){
         nOpac=-1;
	}

        if(opacity>100 || opacity<0){
           //nPlus=-nPlus;
   
        }
    
        imgs.style.filter="alpha(opacity=0)";
	imgs.filters.alpha.opacity = opacity;
        
  }



}




function check(trenslika)

{

 

 parent.document.getElementById('trenutna').value=trenslika;
 

}


function PredhodnaSlika()
{
 var tren=parent.document.getElementById('trenutna').value;
 
 if (tren>1)
 {

  H=window.frames['slikice'].document.getElementById(tren-1).height;
  W=window.frames['slikice'].document.getElementById(tren-1).width;

     if(H>W)
     {
	ratio=410 / H;
	newH=ratio * H;
        newW=ratio * W;
     }
     else
     {     
	ratio=580 / W;
        newW=ratio * W;
        newH=ratio * H;

        if (newH>410)
        {
          ratio=410 / newH;
	  newH=410;
	  newW=ratio * newW;

	}


     }


   if (navigator.appName == "Microsoft Internet Explorer")
     {
      FadeImgIn();
     }

  parent.document.getElementById('glavna').height=newH;
  parent.document.getElementById('glavna').width=newW;
  parent.document.getElementById('glavna').src=window.frames['slikice'].document.getElementById(tren-1).src;
  parent.document.getElementById('trenutna').value=tren-1;

 }
}

function NextSlika()
{
 
  var tren=parent.document.getElementById('trenutna').value;

  tren=tren-1+2;
  H=window.frames['slikice'].document.getElementById(tren).height;
  W=window.frames['slikice'].document.getElementById(tren).width;

     if(H>W)
     {
	ratio=410 / H;
	newH=ratio * H;
        newW=ratio * W;
     }
     else
     {     
	ratio=580 / W;
        newW=ratio * W;
        newH=ratio * H;

        if (newH>410)
        {
          ratio=410 / newH;
	  newH=410;
	  newW=ratio * newW;

	}


     }
 
  if (navigator.appName == "Microsoft Internet Explorer")
     {
      FadeImgIn();
     }
  
  parent.document.getElementById('glavna').height=newH;
  parent.document.getElementById('glavna').width=newW;
  parent.document.getElementById('glavna').src=window.frames['slikice'].document.getElementById(tren).src;
  
  parent.document.getElementById('trenutna').value=tren;
  
 
}




function doRollover(imageID, imageSource, H, W)
{

     	
if (nOpac==-1)
{
     if (navigator.appName == "Microsoft Internet Explorer")
     {
      FadeImgIn();
     }

     
     if(H>W)
     {
	ratio=410 / H;
	newH=ratio * H;
        newW=ratio * W;
     }
     else
     {     
	ratio=580 / W;
        newW=ratio * W;
        newH=ratio * H;

        if (newH>410)
        {
          ratio=410 / newH;
	  newH=410;
	  newW=ratio * newW;

	}


     }
     

     parent.document.getElementById(imageID).height=newH;
     parent.document.getElementById(imageID).width=newW;
     parent.document.getElementById(imageID).src=imageSource;
     
}
 
}