[misha_turist]

задача решена.

дело было в кавычках в строке newCell.innerHTML = "<input type='hidden' name='p_select_type_content_id_to_link' value='"+p_select.options[p_select.selectedIndex].value+"'>"+p_select.options[p_select.selectedIndex].text;

function add_type_content_row(p_select)
      {
	//  alert(p_select);
/*	  alert(p_value_id);
	  alert(p_value_name);*/
	  if (p_select.options[p_select.selectedIndex].text != '')
	  {
	     var table_type_content_link = document.getElementById('id_table_type_content_link');
         var newRow = table_type_content_link.insertRow(table_type_content_link.rows.length-1);
         var newCell = newRow.insertCell(0);
		 newCell.valign = "middle"; 
		 newCell.className = "PortletHeading2";
         newCell.innerHTML = "<input type='hidden' name='p_select_type_content_id_to_link' value='"+p_select.options[p_select.selectedIndex].value+"'>"+p_select.options[p_select.selectedIndex].text;
		 var newCell = newRow.insertCell(1);
		 newCell.className = "PortletText2";
  //       newCell.innerHTML="<b>строка 1 столбец 1</b>";
		 var newCell = newRow.insertCell(2);
//         newCell.innerHTML="<b>строка 1 столбец 1</b>";
		 newCell.className = "PortletText2";
         
		 p_select.options[p_select.selectedIndex]=null;
		 p_select.selectedIndex=null;
		} 
      };
      </SCRIPT>