/* ----------------------------------------------------------- globals


	default global vars

*/	


/* ----------------------------------------------------------- Util_Random

	Return random number between min & max, inclusive

*/

function Util_Random(min,max)
{
	return Math.floor(Math.random()*(max-min+1)+min);
}

/* ----------------------------------------------------------- Obj_Random_Unique

	Object to create unique random number between min & max, inclusive

	new Obj_Random_Unique(min,max)

	.unique()  returns number between min and max

*/

function Obj_Random_Unique(min,max)
{
	var range_min = min;
	var range_max = max;
	var range_count = max-min+1;
	var unique_array = new Array(range_count);
	var i;

// init "hit" array

	for( i=0; i<range_count; i++ ) unique_array[i] = 0;

// "unique" member
	this.unique = function()
	{
		do {
			i = Util_Random(0,range_count-1);
		} while( unique_array[i] );
		unique_array[i] = 1;
		return i + range_min;
	}
}

/* ----------------------------------------------------------- Obj_StringArray

	Object to create array of strings and then return them

	new Obj_StringArray()

	.add('string to add')
	.random()  returns random string
	.unique_random() returns random string (each only once)

*/

function Obj_StringArray()
{
	var count = 0;
	var building = 1;
	var array = new Array();
	var random_init = 0;
	var random_unique_obj;

	this.add = function(str)
	{
		if( !building ) alert('Once array features are used, adding not allowed');
		array[count++] = str;
	}

	// private function to signal "adding" is done, need to possibly initialize random object
	function add_done()
	{
		if( !random_init )
		{
			random_init = 1;
			building = 0;
			random_unique_obj = new Obj_Random_Unique(0,count-1);
		}
	}

	this.random = function()
	{
		add_done();
		return array[Util_Random(0,count-1)];
	}

	this.unique_random = function()
	{
		add_done();
		return array[random_unique_obj.unique()];
	}
}


/* ----------------------------------------------------------- Video_AddMovieEmbedHTML

	this function is called by the pop-up HTML to get around a problem in IE7:
	if this code were directly in the pop-up HTML, then IE7 would force the user to press spacebar
	or click to play the movie... all to conform to some odd-ball patent
	by having this code separate it bypasses the patent problem

*/

function Video_AddMovieEmbedHTML(name,width,height)
{
document.write('<OBJECT CLASSID="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" ' +
				'WIDTH="' + width + '" ' +
				'HEIGHT="' + height + '" CODEBASE="http://www.apple.com/qtactivex/qtplugin.cab">' +
				'<PARAM NAME="SRC" VALUE="' + name + '">' +
				'<PARAM NAME="AUTOPLAY" VALUE="true">' +
				'<PARAM NAME="CONTROLLER" VALUE="true">' +
				'<PARAM NAME="SCALE" VALUE="tofit">' +
				'<EMBED SRC="' + name + '" WIDTH="' + width + '" HEIGHT="'+height+'" ' +
				'SCALE="tofit" AUTOPLAY="true" CONTROLLER="true" ' +
				'PLUGINSPAGE="http://www.apple.com/quicktime/download/">' +
				'</EMBED></OBJECT>' );
}

/* ----------------------------------------------------------- Video_PopupWindow

	open up Video Pop-Up window and play QuickTime Movie

*/

var videoWindow = null;	// window that is open and playing video
var bViewingTheVideosPage = 0;	// do special stuff if on the "Videos" page (search below for details! :)


/* If you add a dash to the beginning of a title, it won't be quoted as is the default */

function Video_FixTitle(theTitle)
{
	if( theTitle.charAt(0)=='-' ) return theTitle.slice(1);
	else return '"' + theTitle + '"';
}

function Video_PopupWindow(theTitle,theFile,windWidth,windHeight,movWidth,movHeight)
{
	theParms = 'title='+Video_FixTitle(theTitle)+'&movie='+theFile+'&width='+movWidth+'&height='+movHeight;

	w = screen.availWidth, h = screen.availHeight;
	if( w<800 ) W = 800;
	if( h<600 ) h = 600;

	windLeft = (w-windWidth)/2, windTop = (h-windHeight)/2;
	windTop = windTop - (windTop/4);

	// if the window already exists, the open will fail to resize so close it first
	if( videoWindow && videoWindow.open )
	{
		if( !videoWindow.closed ) videoWindow.close();
		delete videoWindow;
		videoWindow = null;
	}

	windName = 'wndMovie';
	videoWindow = window.open('videos_popup.html?'+theParms, windName,'width='+windWidth+',height='+windHeight
		+',top='+windTop+',left='+windLeft+',status=no,toolbar=no,location=no,menubar=no,scrollbars=no,resizable=no');
}

/* ----------------------------------------------------------- Video_AddHTML

	add HTML code to display video thumbnail, description and links

	for even more consistency, each video should have the code to
	call this function in a SSI

*/

var bStaggerSides = 0;	// 0: thumbnail on left, 1: on right

function Video_AddHTML(theTitle,theDescription,theTime,theFile)
{
	document.write('<TABLE ALIGN="CENTER" CELLSPACING="0" CELLPADDING="7"><TR VALIGN="MIDDLE">');

	if( bStaggerSides )
	{
		Video_AddHTML_GraphicSide(theFile,theTitle);
		Video_AddHTML_TextSide(theTitle,theDescription,theTime,'LEFT');
	}
	else
	{
		Video_AddHTML_TextSide(theTitle,theDescription,theTime,'RIGHT');
		Video_AddHTML_GraphicSide(theFile,theTitle);
	}

	if( bViewingTheVideosPage ) bStaggerSides = 1 - bStaggerSides;

	document.write('</TR></TABLE><BR>');
}

function Video_AddHTML_GraphicSide(theFile,theTitle)
{
	comm = "<A CLASS=\"video\" HREF=\"javascript:Video_PopupWindow('" + theTitle + "','" + theFile;
	str = '<TD ALIGN="CENTER"><IMG SRC="'+theFile+'.jpg" ALT="" BORDER="2"><BR><SPAN CLASS="video_play"><IMG SRC="videos/video.gif" BORDER="0" ALT=""> '
		+ comm + '_56k\',370,300,160,120)">56k modem</A> - '
		+ comm + '_DSL\',370,300,320,240)">Cable/DSL</A> - '
		+ comm + '_HIGH\',710,556,640,480)">SuperSize</A>'
		+ '</SPAN></TD>';
	document.write(str);
}

function Video_AddHTML_TextSide(theTitle,theDescription,theTime,theSide)
{
	str = '<TD ALIGN="' + theSide + '" WIDTH="320">'
		+ '<SPAN CLASS="video_name">' + Video_FixTitle(theTitle) + (bViewingTheVideosPage ? '':' - Video') + '</SPAN><BR>'
		+ '<SPAN CLASS="video_description"><BR>' + theDescription + ' </SPAN>'
		+ '<SPAN CLASS="video_time">' + theTime + ' min</SPAN><BR><BR></TD>';
	document.write(str);
}