Validate a field within a numerical range

use by:
Including the code content in your custom code block. Then add binding code like the one shown below into your custom code block, in order to link the validation to a given FormAssembly field. Note the order of parameters is field_id, largest_value, smallest_value.

<script>
setup_range("tfa_Intbetween100and",200.4,-100.1);
</script>


example:
http://www.tfaforms.com/127819

code:
<script>
wFORMS.behaviors.validation.rules.isInRange = { selector: ".validate-range", check: 'validateRange'};

wFORMS.behaviors.validation.messages.template_isInRange = "The value provided is not in the range between %%1%% and %%2%%";
wFORMS.behaviors.validation.messages.isInRange = "The value provided is not in the range between %%1%% and %%2%%";


wFORMS.behaviors.validation.instance.prototype.validateRange = function(element, value) {
var _value = parseFloat(value);
classAtts = element.className.split(" ");
var _larger = null;
var _smaller = null;
for(i = 0; i<classAtts.length; i++){
if(classAtts[i] == "validate-range"){
if(classAtts[i+2]){
_larger=parseFloat(classAtts[i+1]);
_smaller=parseFloat(classAtts[i+2]);
}
}
}

if( (_value < _smaller) || (_value > _larger) ){
wFORMS.behaviors.validation.messages.isInRange = wFORMS.behaviors.validation.messages.template_isInRange;
wFORMS.behaviors.validation.messages.isInRange = wFORMS.behaviors.validation.messages.isInRange.replace('%%1%%',_larger);
wFORMS.behaviors.validation.messages.isInRange = wFORMS.behaviors.validation.messages.isInRange.replace('%%2%%',_smaller);

return false;
}

return true;
}

function setup_range(parent,larger,smaller){
base2.DOM.Element.addEventListener(document,'DOMContentLoaded',function(){
base2.DOM.bind(base2.DOM.Element.querySelector(document,"#"+parent)).addClass("validate-range " + larger + " " +smaller);
});
}
</script>

Yup, but I always feel a bit bad handing non-programmers / power users something like:
# 1 or 001..999:
^(0{0,2}[1-9]|0?[1-9][0-9]|[1-9][0-9][0-9])$
http://www.regular-expressions.info/numericranges.html

It's sort of an abuse of the regex power.
Of course the code Ive provided is abusive in its own right as it relies on the order of class attributes, which I believe is not officially guaranteed.

You pays your moneys and takes your chances.
Drew.