function select_option_inside_select_element_by_value ( select_element_name, option_value )
{
	var select_element = document.getElementById( select_element_name );
	
	for( var i = 0; i < select_element.options.length; i++ )
	{
		if ( select_element.options[i].value == option_value )
		{
			select_element.options[i].selected = true;
			
			break;
		}
	}
}

function get_select_selected_value( select_element_name )
{
	var select_element = document.getElementById( select_element_name );
	
	if ( select_element != null )
	{
		return select_element.options[select_element.selectedIndex].value;
	}
	
	return null;
}

function clear_submitted_form( form_name )
{
	var form_obj = document.getElementById( form_name );
	
	if ( form_obj != undefined )
	{
	
		for ( var i = 0; i < form_obj.elements.length; i++ )
		{
			switch ( form_obj.elements[i].type )
			{
				case "text":
				case "textarea":
				case "password":
				{
					form_obj.elements[i].value = "";
					
					break;
				}
			}
		}
	}
}

function hide_table_row( table_row_id, b_hide )
{
	var table_row = document.getElementById( table_row_id );
	
	if ( table_row != null )
	{
		if ( b_hide == true )
		{
			table_row.style.display = "none";
		}
		else
		{
			table_row.style.display = "";
		}
	}
}