// JavaScript Document

// JavaScript Document
// return the value of the radio button that is checked

// return an empty string if none are checked, or

// there are no radio buttons

function getCheckedValue(radioObj) {

	if(!radioObj)

		return "";

	var radioLength = radioObj.length;

	if(radioLength == undefined)

		if(radioObj.checked)

			return radioObj.value;

		else

			return "";

	for(var i = 0; i < radioLength; i++) {

		if(radioObj[i].checked) {

			return radioObj[i].value;

		}

	}

	return "";

};



// set the radio button with the given value as being checked

// do nothing if there are no radio buttons

// if the given value does not exist, all the radio buttons

// are reset to unchecked

function setCheckedValue(radioObj, newValue) {

	if(!radioObj)

		return;

	var radioLength = radioObj.length;

	if(radioLength == undefined) {

		radioObj.checked = (radioObj.value == newValue.toString());

		return;

	}

	for(var i = 0; i < radioLength; i++) {

		radioObj[i].checked = false;

		if(radioObj[i].value == newValue.toString()) {

			radioObj[i].checked = true;

		}

	}

};


Array.prototype.findIndex = function(value)
{
	var ctr = -1;
	for (var i=0; i < this.length; i++) 
	{
		// use === to check for Matches. ie., identical (===), ;
		if (this[i] == value) 
		{
			return i;
		}
	}
	return ctr;
};