// Calculate the total for items in the form which are selected.
function calculateTotal(inputItem) {
  with (inputItem.form) {
    // Process each of the different input types in the form.
    if (inputItem.type == "radio") {   // Process radio buttons.
      // Subtract the previously selected radio button value from the total.
      calculatedTotal.value = eval(calculatedTotal.value) - eval(previouslySelectedRadioButton.value);
      // Save the current radio selection value.
      previouslySelectedRadioButton.value = eval(inputItem.value);
      // Add the current radio button selection value to the total.
      calculatedTotal.value = eval(calculatedTotal.value) + eval(inputItem.value);
    } else {   // Process check boxes.
      if (inputItem.checked == false) {   // Item was uncheck. Subtract item value from total.
          calculatedTotal.value = eval(calculatedTotal.value) - eval(inputItem.value);
      } else {   // Item was checked. Add the item value to the total.
          calculatedTotal.value = eval(calculatedTotal.value) + eval(inputItem.value);
      }
    }

    // Total value should never be less than 0.
    if (calculatedTotal.value < 0) {
      InitForm();
    }

    // Return total value.
    return(formatCurrency(calculatedTotal.value));
  }
}

// Format a value as currency.
function formatCurrency(num) {
  num = num.toString().replace(/\$|\,/g,'');
  if(isNaN(num))
     num = "0";
  sign = (num == (num = Math.abs(num)));
  num = Math.floor(num*100+0.50000000001);
  cents = num%100;
  num = Math.floor(num/100).toString();
  if(cents<10)
      cents = "0" + cents;
  for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
      num = num.substring(0,num.length-(4*i+3)) + ',' + num.substring(num.length-(4*i+3));
  return (((sign)?'':'-') + '$' + num + '.' + cents);
}

// This function initialzes all the form elements to default values.
function InitForm() {
  // Reset values on form.
  document.selectionForm.total.value='$0';
  document.selectionForm.calculatedTotal.value=0;
  document.selectionForm.previouslySelectedRadioButton.value=0;

  // Set all checkboxes and radio buttons on form to unchecked.
  for (i=0; i < document.selectionForm.elements.length; i++) {
    if (document.selectionForm.elements[i].type == 'checkbox' | document.selectionForm.elements[i].type == 'radio') {
      document.selectionForm.elements[i].checked = false;
    }
  }
}



function popUpestimator(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=500,height=700,left = 500,top = 5');");
}


function popUpterms(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=400,height=610,left = 500,top = 5');");
}

// Div Toggle.

function switchMenu(obj) {
	var el = document.getElementById(obj);
	
	
	if ( el.style.display == 'none' )
	{el.style.display = 'block';}
	
	else
	{el.style.display = 'none';}
}

function $() {
var elements = new Array();
for (var i = 0; i < arguments.length; i++) {
var element = arguments[i];
if (typeof element == 'string')
element = document.getElementById(element);
if (arguments.length == 1)
return element;
elements.push(element);
}
return elements;
}

function collapse()
{
document.getElementById(obj).style.display = 'none';
document.getElementById(obj).style.visibility = 'hidden';
}


// Moo tools

window.addEvent('domready', function(){
	//First Example
	var el = $('myElement'),
		color = el.getStyle('backgroundColor');
	
	// We are setting the opacity of the element to 0.5 and adding two events
	$('myElement').set('opacity', 0.5).addEvents({
		mouseenter: function(){
			// This morphes the opacity and backgroundColor
			this.morph({
				'opacity': 4,
				'background-color': '#ffffff'
			});
		},
		mouseleave: function(){
			// Morphes back to the original style
			this.morph({
				opacity: 0.5,
				backgroundColor: color
			});
		}
	});
	});

window.addEvent('domready', function() {
	
	//create our Accordion instance
	var myAccordion = new Accordion($('howtos'), 'h6.toggler', 'div.element', {
		opacity: false,
		onActive: function(toggler, element){
			toggler.setStyle('color', '#41464D');
		},
		onBackground: function(toggler, element){
			toggler.setStyle('color', '#528CE0');
		}
	});
	});