function checkFields(){
	if (document.contactus.Name.value == ""){
			alert("Your Name is required");
			return false;
		}	
	if (document.contactus.email.value == "" || (document.contactus.email.value.indexOf("@",0) == -1||document.contactus.email.value.indexOf(".",0) == -1)) { 
			alert("Please enter a valid E-mail address");
			return false;
		}
	if (document.contactus.Comments.value == ""){
			alert("Your Comments are required");
			return false;
		}	
}