Change slider options from range to single value on the fly

I am trying to use the slider in two, exclusive ways. In one instance, I want a range of values to search for. In the other instance, I want to search for a single value. I want one slider to do this and to use a checkbox to toggle range:true and range:false.

This is my attempt to change an already-set slider that functions

perfectly.

$("input[name=rangeLSAT]").bind("click",function(){

if($(this).attr("checked")){

Now it's checked

}

else{

Now it's unchecked

$("#LSAT_Slider").slider({

range: false,

slide: function(e,ui) {

alert("Hi");

}

});

}

It produces the following error:

d.split is not a function

e(Object range=false, undefined)jquery-1.2.6.pack... (line 11)

(no name)()0708 (line 67)

e(Object originalEvent=Event click which=1 view=window)jquery-1.2.6.pack... (line 11)

e()

The initial initiation of the slider works flawlessly.