//Distribution List Validation

function checksubmit()
	{ 
	 if (document.dist_form.USAGno.value == "")
		{	alert("Please enter your 6 digit USAG Number."); document.dist_form.contact_name.focus(); return false;	}
	 else
	 	{   if (document.dist_form.USAGno.value.length != 6)
	 		{   alert("Please enter your 6 digit USAG Number."); document.dist_form.contact_name.focus(); return false;	}
	 		for (i = 0; i < 6; i++)
	 		{ if (document.dist_form.USAGno.value[i] < "0" || document.dist_form.USAGno.value[i] > "9")
	 		  {   alert("Please enter your 6 digit USAG Number."); document.dist_form.contact_name.focus(); return false;	}
	 		}
	 	}
	 if (document.dist_form.email.value == "")
		{	alert("Please enter your email address.");	document.dist_form.email.focus(); return false;	}
		else 
			{
			 tmp = new String(document.dist_form.email.value);
			 tmp2 = tmp.split("@")
			 if (tmp2.length != 2)
				{	alert("Not a valid email address!"); document.dist_form.email.focus(); return false;}
			 if (tmp2[0] == '')
				{	alert("Not a valid email address!"); document.dist_form.email.focus(); return false;}
				tmp3 = tmp2[1].split('.')
				if (tmp3.length < 2)
					{	alert("Not a valid email address!"); document.dist_form.email.focus(); return false;}
				i = tmp3.length
				  for (j = 0; j<i ;j++)
					{
				 	 if (tmp3[j] =="")
				 	 {	alert("Not a valid email address!"); document.dist_form.email.focus(); return false;}
			}
				 
		 }
	 if (document.dist_form.email_confirm.value != document.dist_form.email.value)
		{	alert("Your email address does not match.");	document.dist_form.email.focus(); return false;	}
	
	 if (document.dist_form.Webupdates.checked == false && document.dist_form.Newsletter.checked == false)
		{	alert("Please choose to be added to one or both of the lists."); document.dist_form.subject.focus(); return false; }
	 document.dist_form.submit();
	}