var clicked='';
var unclick='';
 function resetElement()   
{ if ( on != '')
	{ 
	if (dom2) {document.getElementById(on).style.display='none'}
	else if (ns4) {document.layers[on+'section'].document.layers[on].display='none'}
	else if (ie4) {document.all[on].style.display='none'}
       }
}
// End resetElement
//
function check(fieldname,element,fieldtype) {
switch(fieldtype) {
case 'TEXT':
if(element.value=='') return fieldname+'\n';
break;
case 'SELECT':
if(element.selectedIndex < 1) return fieldname+'\n';
break;
case 'RADIO':
OK=false;
for (i=0;i<element.length;i++) {
if (element[i].checked) OK=true;
}
if (!OK) {
return fieldname+'\n';
}
break;
case 'CHECKBOX':
var retArr = new Array();
var lastElement = 0;
if (element[0]) { // if the button group is an array (one check box is not an array)
for (var i=0; i<element.length; i++) {
if (element[i].checked) {
retArr.length = lastElement;
retArr[lastElement] = i;
lastElement++;
}
}
} else { // There is only one check box (it's not an array)
if (element.checked) { // if the one check box is checked
retArr.length = lastElement;
retArr[lastElement] = 0; // return zero as the only array value
}
}
if(retArr.length==0) return fieldname+'\n';
break;
default:
if(element.value=='') return fieldname+'\n';
break;
}
return '';
}
// End check
//
// this test if the browser supports the new DOM2 (IE5+ NS6+)
dom2 = document.getElementById?true:false;
// this test if the browser supports the Netscape Layers extention DOM2 (NS4 dropped in NS6)
ns4 = (document.layers)?true:false;
// this test if the browser supports the Document.All element (IE3+)
ie4 = (document.all)?true:false;
var on = ''
function showElement(onname)
{	
//alert(document.getElementById(onname).style.display);
//   if ( on == onname) return true;
   if ( on != '') {
	if (dom2) {document.getElementById(on).style.display='none'}
	else if (ns4) {document.layers[on+'section'].document.layers[on].display='none'}
	else if (ie4) {document.all[on].style.display='none'}
       }
	if (dom2) {document.getElementById(onname).style.display='inline'}
     	else if (ns4) {document.layers[onname+'section'].document.layers[currElem].display='inline'}
	else if (ie4) {document.all[onname].style.display='inline';}
       on=onname
}
// End showElement
////
// Check that required fields are filled in on questionnaire
//
function validate() {
var validatelist = '';
var failed = false;
validatelist += check('Name',document.forms[0].Question1,'TEXT');
validatelist += check('Organisation',document.forms[0].Question2,'TEXT');
validatelist += check('e-mail',document.forms[0].Question6,'TEXT');
if (validatelist.length>0) {
alert('You have left the following fields blank and they\nwill need to be completed in order to proceed:\n\n'+validatelist);
return false;
}
else {
return true;
}
}
// End function
//