function evencolumns(){
	var ie7 = (document.all && !window.opera && window.XMLHttpRequest) ? true : false;
	if(!ie7){
		leftcolumn=document.getElementById("text").offsetHeight;
		rightcolumn=document.getElementById("rightcontentlinks").offsetHeight;
		if(leftcolumn>rightcolumn){
			leftcolumn=leftcolumn-23;
			document.getElementById("rightcontentlinks").style.height=leftcolumn+"px";
		}
	}
}
function clearText(thefield) {
  if (thefield.defaultValue==thefield.value) { thefield.value = ""; }
} 
function replaceText(thefield) {
  if (thefield.value=="") { thefield.value = thefield.defaultValue; }
}
formisgood=1;
function rt_submit_question(){
	check_right_form();
	if (formisgood==1){document.forms['mini_email_form'].submit();}
	//Reset test value
	formisgood=1;
}
function check_right_form(){
		if(formisgood==1){check_rtname();}
		if(formisgood==1){check_rtemail();}
		if(formisgood==1){check_rtphone();}
}
function check_rtzip(){
	str=document.getElementById('rtzip').value;
	validzip=isValidZipCode(str);
	if ((str=="* Zip code")||(validzip==false)){
		formisgood-=1;
		document.getElementById('form_message_email_status').innerHTML="  Missing 5 digit Zip Code.";
	}
}
function isValidZipCode(value) {
   //var re = /^\d{5}([\-]\d{4})?$/;
   var re = /^\d{5}?$/;
   return (re.test(value));
}
function check_rtemail(){
	str=document.getElementById('rtemail').value;
	if (!((str.indexOf(".") > 2) && (str.indexOf("@") > 0))){
		formisgood-=1;
		document.getElementById('form_message_email_status').innerHTML="  A valid Email is required.";
	}
}
function check_rtname(){
	str=document.getElementById('rtname').value;
	if (str=="* Name"){
		formisgood-=1;
		document.getElementById('form_message_email_status').innerHTML="  Missing Name in form.";
	}
}
function check_rtphone(){
	str=document.getElementById('rtphone').value;
	if (str=="* Phone"){
		formisgood-=1;
		document.getElementById('form_message_email_status').innerHTML="  Missing phone number in form.";
	} else if(!checkInternationalPhone(str)){
		formisgood-=1;
		document.getElementById('form_message_email_status').innerHTML="  Please include your area code.";
	}
}
// Declaring required variables
var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}
function trim(s)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not a whitespace, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (c != " ") returnString += c;
    }
    return returnString;
}
function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}
function checkInternationalPhone(strPhone){
var bracket=3
strPhone=trim(strPhone)
if(strPhone.indexOf("+")>1) return false
if(strPhone.indexOf("-")!=-1)bracket=bracket+1
if(strPhone.indexOf("(")!=-1 && strPhone.indexOf("(")>bracket)return false
var brchr=strPhone.indexOf("(")
if(strPhone.indexOf("(")!=-1 && strPhone.charAt(brchr+2)!=")")return false
if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1)return false
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}