function validate()
{
	if(document.getElementById('si-name').value == '')
	{
		alert('Please enter your name.');
		document.getElementById('si-name').focus();
		return false;	
	}
	if(document.getElementById('si-lname').value == '')
	{
		alert('Please enter your Surname.');
		document.getElementById('si-lname').focus();
		return false;	
	}
	if(document.getElementById('si-email').value == '')
	{
		alert('Please enter the Email Address.');
		document.getElementById('si-email').focus();
		return false;	
	}
	if(document.getElementById('si-telephone').value == '')
	{
		alert('Please enter your Contact Number.');
		document.getElementById('si-telephone').focus();
		return false;	
	}
	return true;
}