function checkemail(str)
{
	var testresults
	//var str=document.Contactform.Email.value
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
		if (filter.test(str))
			testresults=true
		else
			{
			//alert("Please input a valid email address!")
			testresults=false
			}
		return testresults;
}