var bilder, b=-1, I=1, i, scr1=32, scr2=32, x=0, y=0, y2=0, p=0;
 bilder= new Array();
 
 function laden(name,pierwszy,drugi){
         bilder[I]=new Array();    bilder[I][0]=name;
         bilder[I][1]=new Image(); bilder[I][1].src=pierwszy;
         bilder[I][2]=new Image(); bilder[I][2].src=drugi;
		 I++;
		                 }/**/
 laden("group","images/header/steri_group_lo.gif","images/header/steri_group_hi.gif");	
 laden("products","images/header/steri_prod_lo.gif","images/header/steri_prod_hi.gif");
 laden("system","images/header/steri_system_lo.gif","images/header/steri_system_hi.gif");		
 laden("contact","images/header/steri_contact_lo.gif","images/header/steri_contact_hi.gif");	
 laden("erst","images/header/pulldown/pulldown_2_steri90_lo.gif","images/header/pulldown/pulldown_2_steri90_hi.gif");	
 laden("sterival","images/header/pulldown/pulldown_3_sterival_lo.gif","images/header/pulldown/pulldown_3_sterival_hi.gif");	
 laden("shredder","images/header/pulldown/pulldown_4_shredder_lo.gif","images/header/pulldown/pulldown_4_shredder_hi.gif");	
 laden("biopuster","images/header/pulldown/pulldown_5_biopuster_lo.gif","images/header/pulldown/pulldown_5_biopuster_hi.gif");	
 laden("abfall","images/header/pulldown/pulldown_6_abfall_lo.gif","images/header/pulldown/pulldown_6_abfall_hi.gif");	
 
 laden("news","images/header/pulldown/pulldown_8_news_lo.gif","images/header/pulldown/pulldown_8_news_hi.gif");	
 
function start(k){
 i=k;
  for(z=1;z<=4;z++){
  	if(i==z && !document.layers) document.images[bilder[z][0]].src=bilder[z][2].src;			  
	}
	rollnav();
}

function hi(r){
 if(!document.layers){
  for(z=1;z<=4;z++){
  	if(r==z) document.images[bilder[z][0]].src=bilder[z][2].src;	
	else document.images[bilder[z][0]].src=bilder[z][1].src;	
	}
  if(i>0) document.images[bilder[i][0]].src=bilder[i][2].src;
 }	
 if(r==1) pulldw1(20,1); 
 if(r==2) pulldw2(20,1); 		  
}
	
function lo(r){
  for(z=3;z<=4;z++){
   if(r==z && !document.layers) document.images[bilder[z][0]].src=bilder[z][1].src;
   }	
 if(i>0 && !document.layers) document.images[bilder[i][0]].src=bilder[i][2].src;
 if(r==1) setTimeout("pulldw1(-20,2)",200);		
 if(r==2) setTimeout("pulldw2(-20,2)",200);		
}
 
function pulldw1(x,I){
 if(I) y = I;
 if(document.layers) document.center.document.pulldown1.top = scr1;
 else{
  if(document.getElementById) document.getElementById("pulldown1").style.top = scr1;
  else document.all("pulldown1").style.top = scr1; 
  } 
 if(x<0 && y==2 && p==0){ 
   if(scr1 > 60){ scr1+=x; setTimeout("pulldw1(-20)",30);}
   else if (!document.layers) document.images[bilder[1][0]].src=bilder[1][1].src;
   }
 else {
   if(scr1<132 && y==1){ scr1+=x; setTimeout("pulldw1(20)",10);}
   }   
}	

function pulldw2(x1,I){
 if(I) y2 = I;
 if(document.layers) document.center.document.pulldown2.top = scr2;
 else{
  if(document.getElementById) document.getElementById("pulldown2").style.top = scr2;
  else document.all("pulldown2").style.top = scr2; 
  } 
 if(x1<0 && y2==2 && p==0){ 
   if(scr2 > -80){ scr2+=x1; setTimeout("pulldw2(-20)",30);}
   else if (i!=2 && !document.layers) document.images[bilder[2][0]].src=bilder[2][1].src;
   }
 else {
   if(scr2<132 && y2==1){ scr2+=x1; setTimeout("pulldw2(20)",10);}
   }   
}	

function menu(I){
 p=4+I;
 if(!document.layers) document.images[bilder[p][0]].src=bilder[p][2].src;	
}	

function menh(I){
 p=I;
 if(p>0){ 
  p+=4;
  if(!document.layers) document.images[bilder[p][0]].src=bilder[p][1].src;
  p=0;
  if(I<6) setTimeout("pulldw2(-20,2)",200);
  else setTimeout("pulldw1(-20,2)",200);
  }
}