function show_element() { 
        var forms = document.forms;
        var elements = [];
        for (var i = 0; i < forms.length; i++ ) {
                elements[i] = get_elements_from_form(forms[i]);
        }
		var arr_err = [];
	
		for(var y = 0; y < arr_id.length; y++)
		 {
          if (elements.toString().indexOf(arr_id[y]) != -1)
		  {
		   var t;
		  }
	      else 
		  {
		   arr_err.push(arr_text[arr_id[y]]);
		  }
		 }
		 		 
		 if(arr_err.length != 0)
		  {
		   var arr_to_str = arr_err.join('\n')
		   alert(arr_to_str);
		  }
		 else { document.getElementById('form').submit(); }
		 
		}
		
      function get_elements_from_form(form)
 	   { 
        var current_el = [];
        for (var i = 0; i < form.length; i++)
		        {
                 var temp_el = form[i];
				  
				 var id_el = temp_el.id.split('_');
				 if(temp_el.value.length)
				  {
				   if(id_el[0] == "y")
				    {
				     if(id_el[3] == 0 || id_el[3] == 1 || id_el[3] == 2 || id_el[3] == 5 || id_el[3] == 6 || id_el[3] == 7 || id_el[3] == 9)
				     { 
					  current_el.push(id_el[1]);
   				     }
					
				     if(id_el[3] == 3 || id_el[3] == 4)
				     { 
					  if(temp_el.checked == true)
					   {
					    current_el.push(id_el[1]);
					   }
   				     }
                    } 					
				  }
                }
		return current_el;
       }