//*************************************************************
//  MouseOver Functions
//*************************************************************
function switchImage(strId,blnState){
	//Purpose:	Provides "mouseover" functionality for all menu
	//          buttons on the CNP Solutions web site.
	//Accepts:  strId    - A page unique identifier for this rollover.
	//          blnState - A boolean value indicating whether the button
	//          is to be highlighted.
	//Returns:  Nothing.
	var strImageName = (blnState) ? "_images/" + strId + "-1.gif" : "_images/" + strId + "-0.gif";
	document.images[strId].src = strImageName;
}

//*************************************************************
//  Form Handling Functions
//*************************************************************
function clearField(strDefault,objField){
	//Purpose:	Clears the content of the passed form field when clicked
	//          if the current content is the same as the passed string.
	//Accepts:  strDefault - The default value of the form field as a string.
	//          objField   - An object reference to the form field to be cleared.
	//Returns:  Nothing.
	if(objField.value == strDefault) objField.value = "";
}

//*************************************************************
//  Window Handling Functions
//*************************************************************
var objPreview = null;

function showImage(strImage,intWidth,intHeight){
	//Purpose:	Opens a window of the specified size, containing the passed image.
	//Accepts:  strImage  - The image file to display.
	//          intWidth  - The width of the window in pixels.
	//          intHeight - The height of the window in pixels.
	//Returns:  Nothing.
	var strURL     = 'products_image.asp?name=' + strImage;
	var strFeature = 'width=' + intWidth + ',height=' + intHeight + ',top=100,left=100,scrollbars=no';

	//Close the window if already open.
	closePopup();

	//Open window and display image.
	objPreview = window.open(strURL,'Preview',strFeature);

	//Give the new window focus.
	setTimeout('objPreview.focus();',250);
}


function showPage(strURL,intWidth,intHeight){
	//Purpose:	Opens a window of the specified size, containing the passed page.
	//Accepts:  strURL  - The page to display.
	//          intWidth  - The width of the window in pixels.
	//          intHeight - The height of the window in pixels.
	//Returns:  Nothing.
	var strFeature = 'width=' + intWidth + ',height=' + intHeight + ',top=100,left=100,scrollbars=no';

	//Close the window if already open.
	closePopup();

	//Open window and display image.
	objPreview = window.open(strURL,'Preview',strFeature);

	//Give the new window focus.
	setTimeout('objPreview.focus();',250);
}


function closePopup(){
	//Purpose:	Closes the image preview popup window.
	//Accepts:  Nothing.
	//Returns:  Nothing.

	//Close the popup window if open.
	if(objPreview && objPreview.open) objPreview.close();
}


//*************************************************************
//  Navigation Menu Functions
//*************************************************************
var strItemOverClass =  "popupOver";
var strItemOutClass  =  "popupOff";
var intCurrentMenu   =  0;
var intActivityDelay =  5000;
var objActivityTimer =  null;
var blnInactive      =  true;

function itemOver(intMenu,intItem){
	//Purpose:  Highlights the menu item with the given id.
	//Accepts:  intMenu     - The id of the menu in which the above menu item resides.
	//          intMenuItem - The id of the above menu item.
	//Returns:  blnInactive - A boolean value indicating whether the menu is currently in use.

	//Set local variables.
	strMenuName = "popupmenu" + intMenu;
	strItemName = "popupmenu" + intMenu + "_" + intItem;
	strLinkName = strItemName + "_link";

	//Clear the activity timer.
	clearTimeout(objActivityTimer);
	blnInactive = false;

	//Highlight the menu item.
	if(document.all){
		document.all[strItemName].className = strItemOverClass;
		document.all[strLinkName].className = strItemOverClass;
	}

	else if(document.getElementById){
		document.getElementById(strItemName).className = strItemOverClass;
		document.getElementById(strLinkName).className = strItemOverClass;
	}
}


function itemOut(intMenu,intItem){
	//Purpose:  Removes the highlight from the menu item with the given id.
	//Accepts:  intMenu     - The id of the menu in which the above menu item resides.
	//          intMenuItem - The id of the above menu item.
	//Returns:  blnInactive - A boolean value indicating whether the menu is currently in use.

	//Set local variables.
	strItemName = "popupmenu" + intMenu + "_" + intItem;
	strLinkName = strItemName + "_link";

	//Remove the highlight from the menu item.
	if(document.all){
		document.all[strItemName].className = strItemOutClass;
		document.all[strLinkName].className = strItemOutClass;
	}

	else if(document.getElementById){
		document.getElementById(strItemName).className = strItemOutClass;
		document.getElementById(strLinkName).className = strItemOutClass;
	}

	//Start the activity timer.
	activityTimer();
	blnInactive = true;
}


function menuOpen(intMenu,strMenuImage){
	//Purpose:  Opens the menu with the given id.
	//Accepts:  intMenu - The id of the menu.
	//Returns:  intCurrentMenu - Sets the id of the currently open menu.

	//Set local variables.
	strMenuName = "popupmenu" + intMenu;
	strCurrent  = "popupmenu" + intCurrentMenu;

	//Clear the activity timer.
	clearTimeout(objActivityTimer);

	if(intCurrentMenu != 0 && intCurrentMenu != intMenu){
		//Close all other menus.
		if(document.all) document.all[strCurrent].style.visibility = "hidden";
		else if(document.layers) document.layers[strCurrent].visibility = "hide";
		else if(document.getElementById) document.getElementById(strCurrent).style.visibility = "hidden";
	}

	//Open the menu.
	if(document.all) document.all[strMenuName].style.visibility = "visible";
	else if(document.layers) document.layers[strMenuName].visibility = "show";
	else if(document.getElementById) document.getElementById(strMenuName).style.visibility = "visible";

		//Change menu corner to straight.
		document.images["banner_right"].src = "_images/banner_rightStraight.gif";
		document.images["banner_left"].src = "_images/banner_leftStraight.gif";
		document.images["title"].src = "_images/title0.gif";

	intCurrentMenu = intMenu;
}


function menuClose(intMenu){
	//Purpose:  Closes the menu with the given id.
	//Accepts:  intMenu        - The id of the menu.
	//Returns:  intCurrentMenu - Sets the id of the currently open menu.

	if(intCurrentMenu != 0) {
		//If 0 is passed as a parameter, close the currently open menu.
		if(intMenu == 0) intMenu = intCurrentMenu;

		//Set local variables.
		strMenuName = "popupmenu" + intMenu;

		//Close the menu.
		if(document.all) document.all[strMenuName].style.visibility = "hidden";
		else if(document.layers) document.layers[strMenuName].visibility = "hide";
		else if(document.getElementById) document.getElementById(strMenuName).style.visibility = "hidden";

		//Change menu corner to curve.
		document.images["banner_right"].src = "_images/banner_rightCurved.gif";
		document.images["banner_left"].src = "_images/banner_leftCurved.gif";
		document.images["title"].src = "_images/title" + strCurrentSection + ".gif";

		intCurrentMenu = 0;
	}
}


function activityCheck(){
	//Purpose:  Close the currently opened menu if no activity is detected.
	//Accepts:  Nothing.
	//Returns:  Nothing.

	//Clear the activity timer.
	clearTimeout(objActivityTimer);

	//Close the menu.
	if(blnInactive && intCurrentMenu != 0) menuClose(intCurrentMenu);
}


function activityTimer(){
	//Purpose:  Starts a timer that calls the function activityCheck.
	//Accepts:  Nothing.
	//Returns:  Nothing.
	objActivityTimer = setTimeout("activityCheck();",intActivityDelay);
}