function toggle(obj) {
	// Moz. or IE
	var sibling=(obj.nextSibling.nodeType==3)? obj.nextSibling.nextSibling : obj.nextSibling;
	// hide or show
	if(sibling.style.display=='' || sibling.style.display=='block') {
		sibling.style.display='none';
		obj.firstChild.firstChild.data='';
	}
	else {
		sibling.style.display='block';
		obj.firstChild.firstChild.data='';
	}
}
//
function initCollapse() {

	var oDT=document.getElementById('version').getElementsByTagName('dt');
	for (var i=0; i < oDT.length; i++) {
		oDT[i].onclick=function() {toggle(this)};
		var oSpan=document.createElement('span');
		var sign=document.createTextNode('+');
		oSpan.appendChild(sign);
		oDT[i].insertBefore(oSpan, oDT[i].firstChild);
		oSpan.style.fontFamily='arial';
		oSpan.style.paddingRight='2px';
		oDT[i].style.cursor='pointer';
		toggle(oDT[i]);
	}
	oDT=null;
}
function validateNewsletter(){
	var root=document.newsletter;
	var name=root.name;
	var email=root.email;
	if(name.value==""){
		alert('Please enter your full name.');
		name.focus();
		return false;
	}
	if(email.value==""){
		alert('Please enter an email address.');
		email.focus();
		return false;

	}
	var pattern = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/;
	var flag2 = email.value.match(pattern);
	if(!flag2){
		alert("Please enter a valid email address");
		email.focus();
		return false;
	}
}

function checkContactform(){
	var root=document.contactForm;


	var name=root.name;
	var company=root.company;
	var phone=root.phone;
	var fax=root.fax;
	var email=root.email;
	var subject=root.subject;
	var message=root.message;

	if(name.value==""){
		alert('Please enter your full name.');
		name.focus();
		return false;
	}
	if(phone.value==""){
		alert('Please enter your home phone number.');
		phone.focus();
		return false;
	}
	if(isNaN(phone.value)){
		alert('The phone number should only contain digits.');
		phone.select();
		return false;
	}
	if(email.value==""){
		alert('Please enter an email address.');
		email.focus();
		return false;
	}
	if(subject.value==""){
		alert('Please enter the subject.');
		subject.focus();
		return false;
	}
	if(message.value==""){
		alert('Please enter your message.');
		message.focus();
		return false;
	}
}

function clearContactForm(){
	var root=document.contactForm;

	var name=root.name;
	var company=root.company;
	var phone=root.phone;
	var fax=root.fax;
	var email=root.email;
	var subject=root.subject;
	var message=root.message;

	if(confirm('Are you sure you want to clear this form?')){
		name.value="";
		company.value="";
		fax.value="";
		phone.value="";
		email.value="";
		subject.value="";
		message.value="";

		return false;
	}

	return false;
}