var
 akt=0;
 intpos=0;

function scrollleft() {
   if (akt>0) { 
     akt--;    
   }
}

function scrollright() {
   if (akt<maxdb-3) {   
     akt++;
   }
}

function posit() {
   var i=0;
   var o=0;
   var dx=0;
   var mozog=0;
   var akto=document.getElementById("hir_"+akt);
   if (akto==null) {
      return 0;
   }
   if (parseInt(akto.style.left)>0) {
     x=parseInt(akto.style.left);
     dx=Math.round(x/2/4);
     for (i=0;i<maxdb;i++) {
      o=document.getElementById("hir_"+i);
      x=parseInt(o.style.left)-dx;      
      o.style.left=x+'px';
     }
     mozog=1;
   }

   if (parseInt(akto.style.left)<0) {
     x=-parseInt(akto.style.left);
     dx=Math.round(x/2/4);
     for (i=0;i<maxdb;i++) {
      o=document.getElementById("hir_"+i);
      x=parseInt(o.style.left)+dx;      
      o.style.left=x+'px';
     }
     mozog=1;
   }
   
}

function nagyit(id) {
}


/**** Banner ***/
var
 banner_1_op=0;
 b1_1=1;
 b1_2=2;
 
 banner_2_op=0;
 b2_1=1;
 b2_2=2;
  
 b1_int=0;
 b2_int=0; 

function initbanner() {
  b1_int=setInterval("banner_1_valt()",b1_time);
  b2_int=setInterval("banner_2_valt()",b2_time);
  intpos=setInterval(posit,20);
}

function banner_1_valt() {
  clearInterval(b1_int);
  var i=0;
  var obj;
  b1_1++;b1_2++;
  if (b1_1>max_banner_1) { b1_1=1; }
  if (b1_2>max_banner_1) { b1_2=1; }
  banner_1_op=0;
  for (i=1;i<=max_banner_1;i++) {
	obj=document.getElementById("banner_n"+i);
    if (i==b1_1) {
	  obj.style.zIndex=1051;
	  continue; 
	}
    if (i==b1_2) {
	  obj.style.zIndex=1050; 
	  continue; 
	}
	obj.style.zIndex=1000+i;	     
  }
  
  b1_int=setInterval("banner_1_fade()",50);
}

function banner_1_fade() {
  fader("banner_n"+b1_2,banner_1_op);
  fader("banner_n"+b1_1,100-banner_1_op);
  banner_1_op=banner_1_op+10;  
  if (banner_1_op>100) {
     clearInterval(b1_int);
     b1_int=setInterval("banner_1_valt()",b1_time);
  }
}


function banner_2_valt() {
  clearInterval(b2_int);
  var i=0;
  var obj;
  b2_1++;b2_2++;
  if (b2_1>max_banner_2) { b2_1=1; }
  if (b2_2>max_banner_2) { b2_2=1; }
  banner_2_op=0;
  for (i=1;i<=max_banner_2;i++) {
	obj=document.getElementById("banner_k"+i);
    if (i==b2_1) {
	  obj.style.zIndex=1051;
	  continue; 
	}
    if (i==b2_2) {
	  obj.style.zIndex=1050; 
	  continue; 
	}
	obj.style.zIndex=1000+i;	     
  }
  
  b2_int=setInterval("banner_2_fade()",50);
}

function banner_2_fade() {
  fader("banner_k"+b2_2,banner_2_op);
  fader("banner_k"+b2_1,100-banner_2_op);
  banner_2_op=banner_2_op+10;  
  if (banner_2_op>100) {
     clearInterval(b2_int);
     b2_int=setInterval("banner_2_valt()",b2_time);
  }
}




function fader(id,opacity) {
	/* helper function to deal specifically with images and the cross-browser differences in opacity handling */
	var obj=document.getElementById(id);
	if (obj.style) {
		if (obj.style.MozOpacity!=null) {  
			/* Mozilla's pre-CSS3 proprietary rule */
			obj.style.MozOpacity = (opacity/100) - .001;
		} else if (obj.style.opacity!=null) {
			/* CSS3 compatible */
			obj.style.opacity = (opacity/100) - .001;
		} else if (obj.style.filter!=null) {
			/* IE's proprietary filter */
			obj.style.filter = "alpha(opacity="+opacity+")";
		}
	}
}