function selectall (elem,count,switcher)
			{
			
				var d=document;
				if(d.getElementById(switcher).checked)
				{
					for(i=1;i<count;i++)
						{
							cur_element=elem+i;
							d.getElementById(cur_element).checked=true;
						}
				} else
						for(i=1;i<count;i++)
						{
							cur_element=elem+i;
							d.getElementById(cur_element).checked=false;
						}
				
			}