// JavaScript Document

function calc(){
  numberofTickets = document.purchaseForm.numberofTickets.value;
  prizeTicket = document.purchaseForm.prizeTicket.value; 
  
  answer = (numberofTickets * prizeTicket);
  
      if (answer== Math.round(answer)){
      answer = (answer + ".00");
    }
    else {
      answer=(answer + "0");
    }
  
  
  document.getElementById('totalCost').innerHTML = '£' + answer;
}

function HideContent(d) { 
	document.getElementById(d).style.display = "none"; 
}

function HideAllContent() { 
	document.write('Hello');
	  document.getElementById('instInfo1').style.display="none";
	  document.getElementById('instInfo2').style.display="none";
	  document.getElementById('instInfo3').style.display="none";
	  document.getElementById('instInfo4').style.display="none";
	  document.getElementById('instInfo5').style.display="none";
	  document.getElementById('instInfo6').style.display="none";
	  document.getElementById('instInfo7').style.display="none";
	  document.getElementById('instInfo8').style.display="none";
}

function ShowContent(d) { 
	document.getElementById(d).style.display = "block"; 
}

function ReverseDisplay(d) { 
	if(document.getElementById(d).style.display == "none") { 
		document.getElementById(d).style.display = "block"; 
	} else { 
		document.getElementById(d).style.display = "none"; 
	}
}


function swapVisibility() {
   if (document.getElementById('instInfo1').style.display != "none") {
      document.getElementById('instInfo1').style.display="none";
	  document.getElementById('instInfo2').style.display="none";
	  document.getElementById('instInfo3').style.display="none";
	  document.getElementById('instInfo4').style.display="none";
	  document.getElementById('instInfo5').style.display="none";
	  document.getElementById('instInfo6').style.display="none";
	  document.getElementById('instInfo7').style.display="none";
	  document.getElementById('instInfo8').style.display="none";
   } else {
	  document.getElementById('instInfo1').style.display="block";
	  document.getElementById('instInfo2').style.display="block";
	  document.getElementById('instInfo3').style.display="block";
	  document.getElementById('instInfo4').style.display="block";
	  document.getElementById('instInfo5').style.display="block";
	  document.getElementById('instInfo6').style.display="block";
	  document.getElementById('instInfo7').style.display="block";
	  document.getElementById('instInfo8').style.display="block";
	  document.getElementById('instInfo9').style.display="block";
  } 
 } 
 

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}