var cur_numb =1;

stps = function(numb){
	var els=document.getElementById('steep_list').getElementsByTagName('li');
	if (numb>0 && numb<els.length-1 && numb != cur_numb){
		cng_stps(els,numb);
		return false;
	}else if (numb==0 && cur_numb != 1){
		numb=cur_numb-1;
		cng_stps(els,numb);
		return false;
	}else if(numb==els.length-1 && cur_numb != els.length-2){
		numb=cur_numb+1;
		cng_stps(els,numb);
		return false;
	}
	return false;
};
cng_stps=function(els,numb){
	els[numb].className='activ';
	if(numb==1){
		els[0].firstChild.className='no_link';
		els[els.length-1].firstChild.className='';
	}else if(numb==els.length-2){
		els[0].firstChild.className='';
		els[els.length-1].firstChild.className='no_link';
	}else{
		els[0].firstChild.className='';
		els[els.length-1].firstChild.className='';
	}
	els[cur_numb].className='';
	document.getElementById('steep_'+numb).className='activ';
	document.getElementById('steep_'+cur_numb).className='';
	cur_numb=numb;
};