function show_hide(num) {
  var s = '';
  for (var i=1; i <= 6; i++) {
    if (num==i) {
      s = 'head_'+i;
	  document.form_4371.let_subj.value = i;
      document.getElementById(s).style.display = 'block'; }
	else {
      s = 'head_'+i;
      document.getElementById(s).style.display = 'none'; }
  }
  document.form_4371.ch_num.focus();
  document.form_4371.fname.focus();
  
}
//==========================================================================
function show_hides(num) {
  var s = ''; ss = ''; sss = ''; w = '';
  for (var i=1; i <= 9; i++) {
	  if (i == num) {
		  s = 'but_'+i;
		  ss = 'but_'+i+'_'+i;
		  sss = 'but_'+i+'_'+i+'_'+i;
		  w = 'win_'+i;
		  document.getElementById(s).className = 'but_active_1';
		  document.getElementById(ss).className = 'but_active_2';
		  document.getElementById(sss).className = 'but_active_3';
		  document.getElementById(w).style.display = 'block';
	  } 
	  else {
		  s = 'but_'+i;
		  ss = 'but_'+i+'_'+i;
		  sss = 'but_'+i+'_'+i+'_'+i;
		  w = 'win_'+i;
		  document.getElementById(s).className = 'but_noactive_1';
		  document.getElementById(ss).className = 'but_noactive_2';
		  document.getElementById(sss).className = 'but_noactive_3';
		  document.getElementById(w).style.display = 'none';
	  }
  }
}
//===========================================================================
function fex() {
	tmp2=document.form_783410_search.search;
	if (trim(tmp2.value)!='') {document.form_783410_search.page_num.value=-1; document.form_783410_search.submit();} 
		else {document.getElementById('faq_sech').className='faq_search_not'; tmp2.focus();} return false; 
}

//===========================================================================
function alert_error(er)
{ var s;
  for(var prop in er)
  { s=s + prop + ' = ' + er[prop] + '\n';
  };
  alert(s);
};

//===========================================================================
function MM_jumpMenu(targ,selObj,restore)
{ if(selObj.selectedIndex!=0 && selObj.options[selObj.selectedIndex].value!='')
  { eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  }
  if (restore) selObj.selectedIndex=0;
}

//===========================================================================
function trim(x)
{
  var ch,c
  ch=x.toString()
  c=ch.charAt(0)
  while (c==" ")
  { ch=ch.slice(1)
  c=ch.charAt(0)
  }
  c=ch.charAt(ch.length-1)
  while(c==" ")
  { ch=ch.slice(0,-1)
  c=ch.charAt(ch.length-1)
  }
  return ch;
}

//===========================================================================
function send(frm, p1, v1, p2, v2, p3, v3, p4, v4, p5, v5)
{ if(!frm) return false;
  if(p1)
  { if (p1=='action') eval('document.'+frm+'.'+p1+'="'+v1+'";');
    else eval('if (document.'+frm+'.'+p1+') document.'+frm+'.'+p1+'.value="'+v1+'";');
  }
  if(p2) eval('if (document.'+frm+'.'+p2+') document.'+frm+'.'+p2+'.value="'+v2+'";');
  if(p3) eval('if (document.'+frm+'.'+p3+') document.'+frm+'.'+p3+'.value="'+v3+'";');
  if(p4) eval('if (document.'+frm+'.'+p4+') document.'+frm+'.'+p4+'.value="'+v4+'";');
  if(p5) eval('if (document.'+frm+'.'+p5+') document.'+frm+'.'+p5+'.value="'+v5+'";');
  eval('document.'+frm+'.submit();');
  return true;
}

//===========================================================================
function check_url(url)
{
  var re = new RegExp("^http[s]?://[\\w\\.-]+\\.[A-Za-z]{2,}.*");
  var re2 = new RegExp("^http[s]?://[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}");
  return(re.test(url) || re2.test(url));
}

//===========================================================================
function check_mail(email)
{ var re = new RegExp("^[\\w\\.-]+@[\\w\\.-]+\\.[A-Za-z]{2,}");
  return (re.test(email));
}

//===========================================================================
function only_number()
{ if(navigator.appName=='Microsoft Internet Explorer')
  { if(!(event.keyCode>47 && event.keyCode<58)) return false;
  }
  return true;
}

//"Internal" function to return the decoded value of a cookie
function getCookieVal (offset)
{ var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1) endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset, endstr));
}

//Function to correct for 2.x Mac date bug.  Call this function to
//fix a date object prior to passing it to SetCookie.
//IMPORTANT:  This function should only be called *once* for
//any given date object!  See example at the end of this document.
function FixCookieDate (date)
{ var base = new Date(0);
  var skew = base.getTime(); // dawn of (Unix) time - should be 0
  if (skew > 0)  // Except on the Mac - ahead of its time
    date.setTime (date.getTime() - skew);
}

//Function to return the value of the cookie specified by "name".
//name - String object containing the cookie name.
//returns - String object containing the cookie value, or null if
//the cookie does not exist.
function GetCookie (name)
{ var arg = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
  while (i < clen)
  { var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
    return getCookieVal (j);
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0) break;
  }
  return null;
}

//  Function to create or update a cookie.
//    name - String object containing the cookie name.
//    value - String object containing the cookie value.  May contain
//      any valid string characters.
//    [expires] - Date object containing the expiration data of the cookie.  If
//      omitted or null, expires the cookie at the end of the current session.
//    [path] - String object indicating the path for which the cookie is valid.
//      If omitted or null, uses the path of the calling document.
//    [domain] - String object indicating the domain for which the cookie is
//      valid. If omitted or null, uses the domain of the calling document.
//    [secure] - Boolean (true/false) value indicating whether cookie transmission
//      requires a secure channel (HTTPS).
//
//  The first two parameters are required.  The others, if supplied, must
//  be passed in the order listed above.  To omit an unused optional field,
//  use null as a place holder.  For example, to call SetCookie using name,
//  value and path, you would code:
//
//      SetCookie ("myCookieName", "myCookieValue", null, "/");
//
//  Note that trailing omitted parameters do not require a placeholder.
//
//  To set a secure cookie for path "/myPath", that expires after the
//  current session, you might code:
//
//      SetCookie (myCookieVar, cookieValueVar, null, "/myPath", null, true);
//
function SetCookie (name,value,expires,path,domain,secure)
{   document.cookie = name + "=" + escape (value) +
    ((expires) ? "; expires=" + expires.toGMTString() : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    ((secure) ? "; secure" : "");
}


//  Function to delete a cookie. (Sets expiration date to start of epoch)
//    name -   String object containing the cookie name
//    path -   String object containing the path of the cookie to delete.  This MUST
//             be the same as the path used to create the cookie, or null/omitted if
//             no path was specified when creating the cookie.
//    domain - String object containing the domain of the cookie to delete.  This MUST
//             be the same as the domain used to create the cookie, or null/omitted if
//             no domain was specified when creating the cookie.
function DeleteCookie (name,path,domain)
{ if (GetCookie(name))
  { document.cookie = name + "=" +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}
function CheckAllFormData()
{
		          //If All right then is_ok=1
				  is_ok=1;
	
				  tmp1 = document.form_4371.ch_num;
				  if( trim(tmp1.value)!='' ) { document.getElementById('ch_num_text').style.color=''; }
				  else {
					is_ok=0;
					document.getElementById('ch_num_text').style.color='red';
					document.form_4371.ch_num.focus();
				  }
				  tmp1 = document.form_4371.bodymessg;
				  if( trim(tmp1.value)!='' ) { document.getElementById('bodymessg_text').style.color=''; }
				  else {
					is_ok=0;
					document.getElementById('bodymessg_text').style.color='red';
					document.form_4371.bodymessg.focus();
				  }
		
				  tmp1 = document.form_4371.question;
				  if( trim(tmp1.value)!='' ) { document.getElementById('question_text').style.color=''; }
				  else {
					is_ok=0;
					document.getElementById('question_text').style.color='red';
					document.form_4371.question.focus();
				  }
		
				  tmp1 = document.form_4371.email;
				  if( check_mail(tmp1.value) ) { document.getElementById('email_text').style.color=''; }
				  else {
					is_ok=0;
					document.getElementById('email_text').style.color='red';
					document.form_4371.email.focus();
				  }
				  
				  tmp1 = document.form_4371.fname;
				  if( trim(tmp1.value)!='' ) { document.getElementById('fname_text').style.color=''; }
				  else {
					is_ok=0;
					document.getElementById('fname_text').style.color='red';
					document.form_4371.fname.focus();
				  }  
		
				  if (is_ok==1) {
					if(confirm('Send now?')) { document.form_4371.action.value='2'; document.form_4371.submit(); }
					else return false;
				  }
					else return false;
}