function doupdate(vote_form)

	{

		var selected=false;

		var str="";

		var i = 0;



			for(i=0;i<vote_form.elements.length;i++) 

			{

				if(vote_form.elements[i].type == "checkbox")

				{

					if(vote_form.elements[i].checked)

					{

						if (! selected)	str=str + vote_form.elements[i].value+",";

						else			str=str + vote_form.elements[i].value+",";

						selected = true;

					}    

				}

                if(vote_form.elements[i].type == "radio")

                {

                     if(vote_form.elements[i].checked)

                     {     

                          str=vote_form.elements[i].value;

                          selected = true;

                     }

                }

			} 

			if (!selected) return false;



			vote_form.vote_str.value=str;

		vote_form.submit();

	}