function isValidEmail(str) {

   return (str.indexOf(".") > 0) && (str.indexOf("@") > 0);
}

function val_form(){

	valid = true;

        if (( document.contact.name.value == "" ) || ( document.contact.name.value == "Name..." ))
        {
                alert ( "Please Enter your Name." );
				document.contact.name.focus()
                valid = false;
        }
				
		var Email=document.contact.email
		if (valid == true){
				if ((Email.value==null)||(Email.value=="")){
					alert("Please Enter your Email Address.")
					Email.focus()
					valid = false;
				}
		}
		if (valid == true && isValidEmail(Email.value)==false){
					alert("Please Enter a Valid Email Address.")
					Email.value=""
					Email.focus()
					valid = false;
				
				}

        return valid;
}