// JavaScript Document for Front Page only
//configure the paths of the images, plus corresponding target links
var slideimages=new Array()
var slidelinks=new Array()

function slideshowimages(){
for (i=0;i<slideshowimages.arguments.length;i++) {
slideimages[i]=new Image()
slideimages[i].src=slideshowimages.arguments[i]
}
}

function slideshowlinks(){
for (i=0;i<slideshowlinks.arguments.length;i++) {
slidelinks[i]=slideshowlinks.arguments[i]
}
}

function gotoshow(){
if (!window.winslide||winslide.closed)
winslide=window.open(slidelinks[whichlink])
else
winslide.location=slidelinks[whichlink]
winslide.focus()
}

//configure the speed of the slideshow, in miliseconds
var slideshowspeed=4000
var whichlink=0
var whichimage=0
function slideit(){
if (!document.images)
return
document.images.slide.src=slideimages[whichimage].src
whichlink=whichimage
if (whichimage<slideimages.length-1)
whichimage++
else
whichimage=0
setTimeout("slideit()",slideshowspeed)
}


function randomNumber(limit) {
  return Math.floor(Math.random()*limit);
}

function randomImage(imgArr,nos) {
  var imgLink, imgSrc, bid, title, r, s;
  r = randomNumber(imgArr.length / 4);
  s = nos;
  
  imgLink = imgArr[r * 4];
  imgSrc = imgArr[(r * 4)+1];
  bid = imgArr[(r * 4)+2];
  title = imgArr[(r * 4)+3];
  adName = title.replace(/_/g, " ");
  s = s - 1;
  document.write('<p><a href="/portal/'+bid+'-'+title+'" target="_blank"><img src="'+imgSrc+'" border="1" alt="Advertisement: '+adName+'" width="295" height="100" title="Advertisement: '+adName+'"></a></p>');

while ( s > 0) {
  r = r - 1;
  s = s - 1;
  if (r < 0) {
   r = nos-1;
  }

  imgLink = imgArr[r * 4];
  imgSrc = imgArr[(r * 4)+1];
  bid = imgArr[(r * 4)+2];
  title = imgArr[(r * 4)+3];
  adName = title.replace(/_/g, " ");
  document.write('<p><a href="/portal/'+bid+'-'+title+'" target="_blank"><img src="'+imgSrc+'" border="1" alt="Advertisement: '+adName+'" width="295" height="100" title="Advertisement: '+adName+'"></a></p>');
 }
}

function FPevents() {
  currentMonth = currentDate.getMonth();
  var evName = "";
  var evLink = "";
  var evImage = "";
  switch (currentMonth)
  {
    case(0):  evName="Please visit our Sponsors event : Erith MRC";
			  evLink="/portal/4154-Erith_MRC";
			  evImage="erith_exhibition.gif";
			  break;
    case(1):  evName="Please visit our Sponsors event : Nottingham East Midlands MRE";
			  evLink="/portal/4054-Nottingham_East_Midlands_MRE";
			  evImage="emmrex_exhibition.gif";
	          break;
    case(2):  evName="Please visit our Sponsors event : Nottingham East Midlands MRE";
			  evLink="/portal/4054-Nottingham_East_Midlands_MRE";
			  evImage="emmrex_exhibition.gif";
	          break;
    case(3):  evName="Please visit our Sponsors event : Sutton Coldfield Railway Society";
			  evLink="/portal/4001-Sutton_Coldfield_Railway_Society";
			  evImage="scrs_exhibition.gif";
	          break;
    case(4):  evName="Please submit your information or update here.";
			  evLink="/form/submission";
			  evImage="info.jpg";
	          break;
    case(5):  evName="Please submit your information or update here.";
			  evLink="/form/submission";
			  evImage="info.jpg";
	          break;
    case(6):  evName="Please submit your information or update here.";
			  evLink="/form/submission";
			  evImage="info.jpg";
	          break;
    case(7):  evName="Please visit our Sponsors event : Waveney Valley MRC";
			  evLink="/portal/4109-Waveney_Valley_MRC";
			  evImage="waveney_valley2.gif";
			  break;
    case(8):  evName="Please visit our Sponsors event : Waveney Valley MRC";
			  evLink="/portal/4109-Waveney_Valley_MRC";
			  evImage="waveney_valley2.gif";
	          break;
    case(9):  evName="Please visit our Sponsors event : Spalding MRC";
			  evLink="/portal/4235-Spalding_MRC";
			  evImage="spalding.jpg";
	          break;
    case(10): evName="Please visit our Sponsors event : Spalding MRC";
			  evLink="/portal/4235-Spalding_MRC";
			  evImage="spalding.jpg";
	          break;
    case(11): evName="Please visit our Sponsors event : Ipswich MRA";
			  evLink="/portal/4159-Ipswich_MRA";
			  evImage="irma_exhibition.gif";
	          break;
  }	
  			document.write('<a href="/graphics/'+evLink+'" target="_blank"><img src="/pictures/events/'+evImage+'" alt="'+evName+'" width="75" height="135" border="1" title="'+evName+'"></a>');

 }