// Javascript Utilities

// popup window opener
function openWindow(url,wnd,attr)
{
	var d = new Date();
	url = url + "&xrid=" + d.getHours()+d.getMinutes()+d.getSeconds();

	var pictureviewer = window.open(url,wnd,attr);
	pictureviewer.focus();
} 

// changes page in opener window
function setOpenerHref ( url )
{
    if (!window.opener.closed)
	{
	    window.opener.location.href = url;
	}
}

// browser detection
var isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;
jsVersion = 1.1;

// FLASH DETECTION
// Downloaded from Macromedia Flash Player Detection Kit
// See best practices for Flash Player Detection http://www.macromedia.com/devnet/flash/articles/fp8_detection.html

// Javascript required to detect Flash Player PlugIn version information for non-IE browsers
function JSGetSwfVer(i){
	// NS/Opera version >= 3 check for Flash plugin in plugin array
	if (navigator.plugins != null && navigator.plugins.length > 0) {
		if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
			var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
      		var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;
			descArray = flashDescription.split(" ");
			tempArrayMajor = descArray[2].split(".");
			versionMajor = tempArrayMajor[0];
			versionMinor = tempArrayMajor[1];
			if ( descArray[3] != "" ) {
				tempArrayMinor = descArray[3].split("r");
			} else {
				tempArrayMinor = descArray[4].split("r");
			}
      		versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
            flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
      	} else {
			flashVer = -1;
		}
	}
	// MSN/WebTV 2.6 supports Flash 4
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
	// WebTV 2.5 supports Flash 3
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
	// older WebTV supports Flash 2
	else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
	// Can't detect in all other cases
	else {
		
		flashVer = -1;
	}
	return flashVer;
}
 
// returns true if chosen version or greater is available
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision) 
{
 	reqVer = parseFloat(reqMajorVer + "." + reqRevision);
 	
   	// loop backwards through the versions until we find the newest version	
	for (i=25;i>0;i--) {	
		if (isIE && isWin && !isOpera) {
			versionStr = 0;
			
			// we break into some VBScript to detect for IE
			document.write('<scr' + 'ipt language="VBScript"\> \n');
			document.write('on error resume next \n' );
			document.write('Dim swControl \n');
  			document.write('set swControl = CreateObject("ShockwaveFlash.ShockwaveFlash." + CStr(i))  \n');
			document.write('if (IsObject(swControl)) then \n');
    		document.write('versionStr = swControl.GetVariable("$version") \n');
      		document.write('end if');
      		document.write('</scr' + 'ipt\> \n');
  

		} else {
			versionStr = JSGetSwfVer(i);		
		}
		if (versionStr == -1 ) { 
			return false;
		} else if (versionStr != 0) {
			if(isIE && isWin && !isOpera) {
				tempArray         = versionStr.split(" ");
				tempString        = tempArray[1];
				versionArray      = tempString .split(",");				
			} else {
				versionArray      = versionStr.split(".");
			}
			versionMajor      = versionArray[0];
			versionMinor      = versionArray[1];
			versionRevision   = versionArray[2];
			
			versionString     = versionMajor + "." + versionRevision;   // 7.0r24 == 7.24
			versionNum        = parseFloat(versionString);
        	// is the major.revision >= requested major.revision AND the minor version >= requested minor
			if ( (versionMajor > reqMajorVer) && (versionNum >= reqVer) ) {
				return true;
			} else {
				return ((versionNum >= reqVer && versionMinor >= reqMinorVer) ? true : false );	
			}
		}
	}	
}


// loads a flash SWF into a page. 
function flashload ( url, width, height, requestedVersion, alternateContent )
{
	// this ensures the flash SWF gets reloaded even when users use forward/back browser buttons
	var d = new Date();
	url = url + "&xrid=" + d.getHours()+d.getMinutes()+d.getSeconds();

	// Version check for the Flash Player that has the ability to start Player Product Install (6.0r65)
	var hasProductInstall = DetectFlashVer(6, 0, 65);

	// Version check based upon the values required in the installed player
	var hasRequestedVersion = DetectFlashVer( requestedVersion, 0, 0);

	if ( hasRequestedVersion ) 
	{
		document.writeln("<OBJECT classid=clsid:D27CDB6E-AE6D-11cf-96B8-444553540000");
		document.writeln("codebase=http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab WIDTH=" + width + " HEIGHT=" + height + "><PARAM NAME=movie VALUE=" + url + "><PARAM NAME=loop VALUE=false><PARAM NAME=menu VALUE=false><PARAM NAME=quality VALUE=best><PARAM NAME=scale VALUE=noborder><PARAM NAME=bgcolor VALUE=#FFFFFF>");
		document.writeln("<EMBED src=" + url + " loop=false menu=false quality=best scale=noborder bgcolor=#FFFFFF WIDTH=" + width + " HEIGHT=" + height + " TYPE=application/x-shockwave-flash PLUGINSPAGE=http://www.macromedia.com/go/getflashplayer></EMBED> ");
		document.writeln("</OBJECT>");
	}
	else
	{
		if ( alternateContent.length > 0 )
		{
			document.writeln( unescape(alternateContent) );
		}
		else
		{
			document.writeln("<div style=\"text-align:center;\">To view and/or hear this, you need to install the latest Flash Player (its free!)<br /><br />");
			document.writeln("<a target=\"_blank\" href=\"http://www.macromedia.com/go/getflash/\"><b>Install Flash Now</b></a></div>");
		}
	}
	return null;
}



function goStorySheet ( id, rid, tour, dbName, project, user )
{ 
	var storyWindow = window.open ( 'place.aspx?rid=' + rid + '&tour=' + tour + '&ix=' + id + '&db=' + dbName + '&project=' + project + '&user=' + user, 'storyWindow' )
	if (storyWindow==null) { popUpBlocked(); }
}