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<script type="text/javascript">
if(jQuery){
 $j(document).ready(function(){
 	if ( $j.browser.msie ) {
 		$j(":checkbox").click(function(){
			 $j(this).change();
	 });
 }
 $j(".enableDisable").each(function(){
	 var group = $j(this);
	 function disableFn(){
		 group.children("#disabled").fadeTo(250,0.33);
		 group.children("#disabled").find(":checkbox").attr("checked",false); //uncheck
		 group.children("#disabled").find("input[type$='text']").val("");
		 group.children("#disabled").find("input").attr("disabled",true);  //disable
	 }
 function enableFn(){
	 group.children("#disabled").fadeTo(250,1);
	 group.children("#disabled").find("input").attr("disabled",false);
 }
 disableFn();
 $j(this).children("#trigger").find(":checkbox:first").change(function(){
	 var checked = $j(this).attr("checked");
	 if(checked == true){
		  enableFn();
	 }else{
 		 disableFn();
	 }
 });
 });


 $j(".checkboxGroup").each(function(){
	 var group = $j(this);
	 var uncheckAll = function(){
		 group.find("input[type$='checkbox']").attr("checked",false);
		 group.find("input[type$='checkbox']").change();
	 }
	 var uncheckRadioAndAll = function(){
	 group.find("#checkboxAll,#checkboxRadio").find("input[type$='checkbox']").attr("checked",false);
	 group.find("#checkboxAll,#checkboxRadio").find("input[type$='checkbox']").change();
 }



 group.find("#checkboxAll").find("input").click(
	 /*  This was tricky... A number of things needed to happen
 		Basically, This is supposed to treat a group of inputs as if
	 	were all one big checkbox. It is designed so that a checkbox
		 can be next to an input, and the user clicks the input, the
	 	checkbox checks as well. But, when the user clicks the checkbox,
		 the browser marks the checkbox as checked. Therefore, when we check
		 if the checkbox is already checked, it always respondes true...
		 We needed to have 2 cases: when the clicking action is on the first checkbox
		 and when the action is on any other.  */
 	function(){
		 var flip;
		 var checked = $j(this).siblings(":checkbox:first").attr("checked");
		 if($j(this).attr("name") == $j(this).parents("#checkboxAll:first").find(":checkbox:first").attr("name")){
			 checked = $j(this).attr("checked");
			 flip = checked;
		 }else{
			 flip = !checked;
		 }
		 if($j(this).attr("type") == "text") if(flip == false) flip = !filp; // this is so the user doesn't go to check the checkbox, then uncheck it when they hit the input.
		 uncheckAll();
		 $j(this).parents("#checkboxAll:first").find(":checkbox").attr("checked",flip);
		 $j(this).parents("#checkboxAll:first").find(":checkbox").change();
	 }
 );



 group.find("#checkboxRadio").find("input[type$='checkbox']").click(function(){
	 uncheckAll();
	 $j(this).siblings("input[type$='checkbox']").attr("checked",false);
	 $j(this).attr("checked",true);
	 $j(this).change();
 });

 group.find("#checkboxCheckbox").click(
	 function(){
		 uncheckRadioAndAll();
	 }
 );
 });
 });
}
</script>

First, JQuery is included. Next, the script checks to see if JQuery is loaded properly. If so, it proceeds. This means that if there is problem with JQuery, the script will do nothing, and the form will render as it would with no scripting.

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