function show(id)
{
	var vars = new Array();
	vars.push(id);
	//if (typeof id2 !== "undefined") { vars.push(id2); }
	
	//for ( var i=0, len=vars.length; i<len; ++i ){
	
		el = document.getElementById(id);
		if (el.style.display == 'none')
		{
			if (id == "email") {
				document.frmRadio.by[0].checked = true;
				document.frmRadio.by[1].checked = false;
				//el2 = document.getElementById('phone');
				//el2.style.display = 'none';
			} else if (id == "phone") {
				document.frmRadio.by[0].checked = false;
				document.frmRadio.by[1].checked = true;
				//el2 = document.getElementById('email');
				//el2.style.display = 'none';
			}
			//el.style.display = '';
		} else {
			if (id == "email") {
				document.frmRadio.by[0].checked = true;
				document.frmRadio.by[1].checked = false;
				//el2 = document.getElementById('phone');
				//el2.style.display = 'none';
			} else if (id == "phone") {
				document.frmRadio.by[0].checked = false;
				document.frmRadio.by[1].checked = true;
				//el2 = document.getElementById('email');
				//el2.style.display = 'none';
			}
			//el.style.display = 'none';
		}
	//}
}
function MM_validateForm() { //v4.0
  if (document.getElementById){
    var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
    for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=document.getElementById(args[i]);
      if (val) { nm=val.name; if ((val=val.value)!="") {
        if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
          if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
        } else if (test!='R') { num = parseFloat(val);
          if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
          if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
            min=test.substring(8,p); max=test.substring(p+1);
            if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
      } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
    } if (errors) alert('The following error(s) occurred:\n'+errors);
    document.MM_returnValue = (errors == '');
} }

function update_price_options(id){
	//gets the prices from the elements
	if (document.getElementById){
		var element = document.getElementById(id);	
		var selected = element.options[element.selectedIndex];
		var price_passed = selected.id;
		var prices = price_passed.split('-');
		
		var price = prices[0];
		var price5 = prices[1];
		var price10 = prices[2];
		
		if(document.getElementById('price-'+id)){
			document.getElementById('price-'+id).innerHTML = "&pound;" + price + " each";
			document.getElementById('price5-'+id).innerHTML = "&pound;" + price5 + " each";
			document.getElementById('price10-'+id).innerHTML = "&pound;" + price10 + " each";
		}
	}	
}