// JavaScript Document

function checkform() 
{	
	if (document.Form.NAME.value == "")
		{
		alert("Please enter your full name.")
		document.Form.NAME.focus();
		return false;
		}
	if (document.Form.EMAIL.value == "")
		{
		alert("Please enter your email address.")
		document.Form.EMAIL.focus();
		return false;
		}		
	if (document.Form.EMAIL.value != '')
		{
			var AtSymbol = document.Form.EMAIL.value.indexOf('@')
			var Period   = document.Form.EMAIL.value.lastIndexOf('.')
			var Space    = document.Form.EMAIL.value.indexOf(' ')
			var Length   = document.Form.EMAIL.value.length-1

			if ((AtSymbol < 1) || (Period <= AtSymbol+1) || (Period == Length ) || (Space  != -1)) 
   				{  
      			alert('Please re-enter a valid e-mail address!')
      			document.Form.EMAIL.focus();
   				return false;
				}		
		}
	if (document.Form.COMMENT.value == "")
		{
		alert("Please write your question or comment in the box.")
		document.Form.COMMENT.focus();
		return false;
		}			
	else
	{	
	return true;
	}
}