//<script>

//
// Iron Speed constants
//



//
// Iron Speed Utility functions
//

/*
 * Sets the focus on the first element that should "reasonably" receive it
 */
function Fev_FocusOnFirstFocusableFormElement()
{
	for (i = 0; i < document.forms.length; i++)
	{
		if (Fev_FocusOnDefaultElement(document.forms[i])) return;
		//if (Fev_FocusOnFirstFocusableElement(document.forms[i])) return;
	}
}

/*
 * Sets the focus on the first element that is able to receive it
 */
function Fev_FocusOnFirstFocusableElement(objForm)
{
	if (objForm && (objForm != null))
	{
		for (i = 0; i < objForm.length; i++)
		{
			var objElement = objForm.elements[i];
			if (Fev_IsFocusableElement(objElement))
			{
				objElement.focus();
				return true;
			}
		}
	}
	return false;
}

/*
 * Sets the focus on the first element that should "reasonably" receive it
 */
function Fev_FocusOnDefaultElement(objForm)
{
	if (objForm && (objForm != null))
	{
		for (i = 0; i < objForm.length; i++)
		{
			var objElement = objForm.elements[i];
			if (Fev_IsFocusableElement(objElement))
			{
				var strType = Fev_GetElementType(objElement);
				//we know (strType != null) because it was checked within Fev_IsFocusableElement().
				if (strType.toLowerCase().indexOf("select") == 0)
				{
					//NOTE: SELECT tags are ignored (they interfere with mousewheel scrolling when they have focus)
				}
				else
				{
					objElement.focus();
					return true;
				}
			}
		}
	}
	return false;
}

/*
 * returns true if the element can receive focus
 */
function Fev_IsFocusableElement(objElement)
{
	if (objElement && 
		(objElement != null) && 
		Fev_IsElementEnabled(objElement) && 
		Fev_IsElementVisible(objElement) && 
		Fev_IsElementEditable(objElement) )
	{
		var strType = Fev_GetElementType(objElement);
		if (strType != null)
		{
			if ((strType == "text") || (strType == "textarea") || (strType.toString().charAt(0) == "s"))
			{
				return true;
			}
		}
	}
	return false;
}

/*
 * returns true if the element is enabled
 */
function Fev_IsElementEnabled(objElement)
{
	if (objElement && (objElement != null))
	{
		if (!(objElement.disabled == false))
		{
			return false;
		}
		return true;
	}
	return false;
}

/*
 * returns true if the element's content is editable by the user
 */
function Fev_IsElementEditable(objElement)
{
	if (objElement && (objElement != null))
	{
		if (objElement.readOnly)
		{
			return false;
		}
		if ((!objElement.isContentEditable) && (typeof(objElement.isContentEditable) != 'undefined'))
		{
			return false;
		}
		return true;
	}
	return false;
}

/*
 * returns true if the element is visible to the user
 */
function Fev_IsElementVisible(objElement)
{
	if (objElement && (objElement != null))
	{
		if (objElement.style && (objElement.style != null))
		{
			if (objElement.style.display && (objElement.style.display.toLowerCase() == 'none'))
			{
				return false;
			}
			if (objElement.style.visibility && (objElement.style.visibility.toLowerCase() == 'hidden'))
			{
				return false;
			}
			if (objElement.style.visibility && (objElement.style.visibility.toLowerCase() == 'inherit'))
			{
				var objParentElement = Fev_GetParentElement(objElement);
				if (objParentElement && (objParentElement != null) && (!Fev_IsElementVisible(objParentElement)))
				{
					return false;
				}
			}
		}
		return true;
	}
	return false;
}

/*
 * returns true if the element responds directly to Enter key presses
 * return true for:
 *     Textarea, Select/Dropdown, Input Buttons (Submit/Button/Image/Reset),
 *     A tags
 * return false for everything else, including:
 *     Input type=[Radio/Checkbox/Text/Password/File]
 *     IMG tags
 */
function Fev_IsElementUsesEnterKey(objElement)
{
	if (objElement && (objElement != null))
	{
		var strType = Fev_GetElementType(objElement);
		if (strType != null) strType = strType.toLowerCase();
        switch (strType)
        {
            case "textarea":
            case "select":
            case "submit":
            case "button":
            case "image":
            case "reset":
                return true;
                break;
            case "radio":
            case "checkbox":
            case "text":
            case "password":
            case "file":
                return false;
                break;
            default: 
                break;
        }

		var strTagName = Fev_GetElementTagName(objElement);
		if (strTagName != null) strTagName = strTagName.toLowerCase();
		switch (strTagName)
		{
			case "textarea":
			case "select":
			case "a":
				return true;
				break;
			case "img":
			case "input":
			default:
				break;
		}
	}
	return false;
}

function Fev_GetParentElement(objElement)
{
	if (objElement && (objElement != null))
	{
		if (objElement.parentNode && (objElement.parentNode != null))
		{
			return objElement.parentNode;
		}
		if (objElement.parentElement && (objElement.parentElement != null))
		{
			return objElement.parentElement;
		}
	}
	return null;
}

function Fev_GetElementType(objElement)
{
	if (objElement && (objElement != null))
	{
		if (objElement.type)
		{
			return objElement.type;
		}
	}
	return null;
}

function Fev_GetElementTagName(objElement)
{
	if (objElement && (objElement != null))
	{
		if (objElement.tagName)
		{
			return objElement.tagName;
		}
	}
	return null;
}

function Fev_GetEventSourceElement(objEvent)
{
	if (objEvent && (objEvent != null))
	{
		if (objEvent.srcElement)
		{
			return objEvent.srcElement;
		}
	}
	return null;
}

function Fev_IsEnterKeyPressed(bIgnoreTextAreaEvents)
{
	if (window.event)
	{
		var e = window.event;
		var bIsEnterKeyPress = ((e.keyCode == 13) && (e.type == 'keypress'));
		if (bIsEnterKeyPress)
		{
			if (bIgnoreTextAreaEvents && (bIgnoreTextAreaEvents == true))
			{
				var strType = Fev_GetElementType(Fev_GetEventSourceElement(e));
				if (strType != null) strType = strType.toLowerCase();
				if (strType == "textarea")
				{
					return false;
				}
			}
			return true;
		}
	}
	return false;
}

function Fev_IsFormSubmitKeyPress()
{
	if (window.event)
	{
		var e = window.event;
		var bIsEnterKeyPress = ((e.keyCode == 13) && (e.type == 'keypress'));
		if (bIsEnterKeyPress)
		{
			var eventSrc = Fev_GetEventSourceElement(e);
			if (!Fev_IsElementUsesEnterKey(eventSrc))
			{
				return true;
			}
		}
	}
	return false;
}

function Fev_ClickButton(buttonId)
{
	var button = document.all(buttonId);
	if (button == null) button = document.all(buttonId + '_V_Button');
	if (button && (typeof(button.click) == 'object'))
	{
		button.click();
		return true;
	}
	return false;
}

//Sets the value or selection of the form element, independent of the element's type.
function Fev_SetFormControlValue(objElement, strValue)
{
	var strTagName = Fev_GetElementTagName(objElement);
	if (strTagName != null) strTagName = strTagName.toLowerCase();
	switch (strTagName)
	{
		case "textarea":
			objElement.value = strValue;
			return true;
			break;
		case "select":
			var currentIndex = objElement.selectedIndex;
			objElement.value = strValue;
			if (objElement.selectedIndex < 0)
			{
				objElement.selectedIndex = currentIndex;
				return false;
			}
			return true;
			break;
		case "input":
			switch (objElement.type.toLowerCase())
			{
				case "text":
				case "password":
				case "hidden":
					objElement.value = strValue;
					return true;
					break;
				case "file":
					//can't programatically set the value of file controls
					return false;
				case "checkbox":
					if ((strValue == null) || (strValue == ''))
					{
						objElement.checked = false;
						return true;
						break;
					}
					else if (strValue == objElement.value)
					{
						objElement.checked = true;
						return true;
						break;
					}
					else
					{
						//the specified value matches niether the checked nor unchecked state
						//objElement.checked = true;
						//objElement.value = strValue;
						//return true;
						break;
					}
				case "radio":
					if (strValue == null)
					{
						//uncheck all radio buttons in the group
						objElement.checked = true;
						objElement.checked = false;
						return true;
						break;
					}
					else if (strValue == objElement.value)
					{
						objElement.checked = true;
						return true;
						break;
					}
					else
					{
						var f = objElement.form;
						var allRadioButtonsInGroup = f.elements(objElement.name)
						for (i = 0; i < allRadioButtonsInGroup.length; i++)
						{
							var rb = allRadioButtonsInGroup[i];
							if (strValue == rb.value)
							{
								rb.checked = true;
								return true;
							}
						}
						//the specified value matches the checked state of none of the radio buttons
						//objElement.checked = true;
						//objElement.checked = false;
						//return true;
						break;
					}
				default:
					break;
			}
		default:
			break;
	}
	return false;
}

//Inserts the value into a list element, independent of the element's type.
function Fev_ReplaceLastListControlOption(objListElement, strValue, strText)
{
	var strTagName = Fev_GetElementTagName(objListElement);
	if (strTagName != null) strTagName = strTagName.toLowerCase();
	switch (strTagName)
	{
		case "select":
			var objOption = objListElement.options[objListElement.options.length-1];
			objOption.value = strValue;
			objOption.text = strText;
			//objOption.innerText = strText;
			return true;
			break;
		default:
			break;
	}
	return false;
}

function Fev_HandleFormSubmitKeyPress(buttonId)
{
	//if (window.event && (window.event.returnValue == false))
	//	return false;

	if (Fev_IsFormSubmitKeyPress()) //if (Fev_IsEnterKeyPressed(true))
	{
		if (Fev_ClickButton(buttonId))
		{
			if (window.event)
			{
				//window.event.returnValue = false;
				window.event.cancelBubble = true;
			}
			return true;
		}
	}
	return false;
}



//
// Iron Speed Helper Variables
//