// Set the variables
 		
 		var time_delay =  4000;
 		var image_array = new Array(); 
 		var caption_array = new Array(); 
 		var preload_image_object = new Image();
 		var current_slideshow_position = -1;	

//-----------------------------------------------------------------------------------------------	

// Set the image paths
      
	image_array[0] = "http://www.ndtcorporation.com/images/slideshow/brooklyn_bridge.jpg";
	caption_array[0] = 'Brooklyn Bridge - Crosshole "P" and "S" velocity data for seismic Retrofit';
	
	
	image_array[1] = "http://www.ndtcorporation.com/images/slideshow/moakley_bridge.jpg";     
	caption_array[1] = "Moakley Bridge Boston, MA - Tendon Duct Testing";
	
	
	image_array[2] = "http://www.ndtcorporation.com/images/slideshow/jamestown_verrazzano.jpg";     
	caption_array[2] = "Jamestown Verrazzano Bridge, RI - Tendon Duct Testing";
	
	
	image_array[3] = "http://www.ndtcorporation.com/images/slideshow/court-street-bridge.jpg";     
	caption_array[3] = "Hackensack, New Jersey - Foundation Condition Assesment";
	
	
	image_array[4] = "http://www.ndtcorporation.com/images/slideshow/new-croton-aqueduct.jpg";     
	caption_array[4] = "New Croton Aqueduct - Liner Integrity and Behind the Liner Voiding";
	
	
	image_array[5] = "http://www.ndtcorporation.com/images/slideshow/hs_corrosion.jpg";     
	caption_array[5] = "Hydrogen Sulfide Corrosion Detection of PCCP Pipe ";
	
	
	image_array[6] = "http://www.ndtcorporation.com/images/slideshow/dams.jpg";     
	caption_array[6] = "DAMS - Condition and Integrity Testing";
	
	image_array[7] = "http://www.ndtcorporation.com/images/slideshow/parking_garage.jpg";     
	caption_array[7] = "Parking Garage - Condition and Integrity Testing";
	
	image_array[8] = "http://www.ndtcorporation.com/images/slideshow/piles_caissons.jpg";     
	caption_array[8] = "Piles & Caissons  - Construction Length and Integrity Testing";
	
	image_array[9] = "http://www.ndtcorporation.com/images/slideshow/mbta_redline.jpg";     
	caption_array[9] = "Transit Tunnel - MBTA Red Line Liner Construction and Integrity";
	
	image_array[10] = "http://www.ndtcorporation.com/images/slideshow/walls_abutment.jpg";     
	caption_array[10] = "Walls and Abutment Construction and Integrity";

      var image_array_length = image_array.length;

//-----------------------------------------------------------------------------------------------	
//	Preload all the image for quick loading in the slideshow       
    
    for(i=0; i<=image_array_length; i++) {
         preload_image_object.src = image_array[i];
		}
//-----------------------------------------------------------------------------------------------		
		function show_next_image(){			
			
			if((image_array_length - current_slideshow_position) == 1){
				current_slideshow_position = 0;
			}
			else{
				current_slideshow_position++;
			}			
	
			document.ss_image.src = image_array[current_slideshow_position];
									
			// update the caption		
			document.getElementById('desc').innerHTML = caption_array[current_slideshow_position];
	
	init_slideshow();
		}
//-----------------------------------------------------------------------------------------------		
		function init_slideshow(){				
					setTimeout('show_next_image()', time_delay);				
		}		
//-----------------------------------------------------------------------------------------------