function move(num) {
    var mydiv=document.getElementById('myscroll');
    mydiv.scrollTop = num*12;
  }
  
function show(id,nums){
	var num;
	num=document.getElementById(id);
	if(num.style.display=='none'){
		num.style.display='block';
	}else{
		num.style.display='none';
	}

        move(nums);
 }
 
function minus(id){
  kilk=document.getElementById('kilk_'+id);
  if(parseInt(kilk.value)>1){
	kilk.value=parseInt(kilk.value)-1;
	price=document.getElementById('price_'+id);
	summ=document.getElementById('summ_'+id);
	old_sum=summ.value;
	summ.value=parseInt(price.value)*parseInt(kilk.value);
	all_sum(old_sum,summ.value);
  }
}

function plus(id){
	kilk=document.getElementById('kilk_'+id);
	kilk.value=parseInt(kilk.value)+1;
	price=document.getElementById('price_'+id);
	summ=document.getElementById('summ_'+id);
	old_sum=summ.value;
	summ.value=parseInt(price.value)*parseInt(kilk.value);
	all_sum(old_sum,summ.value);
}

function all_sum(old_v,new_v){
	alls=document.getElementById('all_sum');
	alls.value=parseInt(alls.value)-parseInt(old_v)+parseInt(new_v);
}

function chanhe(id){
	kilk=document.getElementById('kilk_'+id);
	price=document.getElementById('price_'+id);
	summ=document.getElementById('summ_'+id);
	if(parseInt(kilk.value)<0){
		kilk.value=parseInt(kilk.value)*(-1);
	}
		old_sum=summ.value;
		summ.value=parseInt(price.value)*parseInt(kilk.value);
		all_sum(old_sum,summ.value);
}

function makeNumber(obj){
    obj.value = obj.value.replace(/,/, '.');
    if (/^(\-)?\d*(\.\d*)?$/.test(obj.value)) obj.defaultValue = obj.value;
    else obj.value = obj.defaultValue;
}

function my_box(){
     var sho;
     var  sh=document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientWidth:document.body.clientWidth;
	if(sh>1300){
		 sho=document.getElementById('my_box');
		 sho.style.display='';
		 sho=document.getElementById('my_ban');
		 sho.style.display='inline';
	}
}