Zoom_Search_URL='http://collections.europarchive.org/tna/20070305155322/http://pathologyimprovement.nhs.uk/app_extensions/Zoom_Search_cancerimprovement_nhs_uk';
	/* <!-- Hide javascript for old non-supporting browsers */

		function new_search() {

							/* Declare string variables */
			var loc = new String();
			var msg = new String();
			var search_txt = new String();
			
							/* Initialise string values */
			msg = 'Please provide valid search criteria';
			search_txt = document.all('zoom_query').value;

							/* Validate search criteria */

				if (search_txt.length < 1)
				
				{
							/* Display null search criteria entry */
					alert(msg);
				}

				else
				
				{
							/* Relocate window instance to new search page providing search criteria */
					loc = Zoom_Search_URL + '/search.asp?zoom_and=0&zoom_sort&zoom_per_page=10&zoom_query=' + search_txt;			
					document.location=loc;
				}
			
			return true;
		}
		
		
		function is_enter_key() {
		
							/*
								Check an event occured and ensure event
								was enter key pressed (asci equiv 13)
								Return true to indicate event was enter key
								or false for other keys or events
							*/

			return (window.event && window.event.keyCode == 13) ? true : false;
		}
		
		
		function perform_search() {

			if (is_enter_key())
			
			{
				new_search();
				return false;
			}
			
			else
			
			{
				return true;
			}
		}

	
	/* <!-- End no-javascript support --> */