/* 
Methods for resizing the flash stage at runtime.

setFlashHeight(divid, newH)
divid: id of the div containing the flash movie.
newH: new height for flash movie

resetFlashHeight(divid)
divid: id of the div containing the flash movie.

canResizeFlash()
returns true if browser supports resizing flash, false if not. 
*/

function setFlashHeight(divid, newH){
	//alert("set heig:"+newH);
	// is this smaller than the browser window's current height?
	// if so, make it 100% high to fill the extra space
	if ( getCurrentHeight() > newH ) {
		fillWindowHeight( divid );
	}
	else {
		document.getElementById(divid).style.height = newH+"px";	
	}
	_global.flashHeight = newH;
	_global.flashID = divid;
	if (window.onresize == null) {
		window.onresize = checkFlashResize;
	}
}

//
// only rememebrs one flash resize. global hack object. fine for this purpose.
//

var _global = new Object();

function fillWindowHeight(divid){
	document.getElementById(divid).style.height = "100%";	
}


function resetFlashHeight(divid){
	fillWindowHeight(divid);
	window.onresize = null;
}


function checkFlashResize() {
 	setFlashHeight(_global.flashID,_global.flashHeight);
}


function getCurrentHeight() {
	 var myWidth = 0, myHeight = 0;
	 if( typeof( window.innerWidth ) == 'number' ) {
		  //Non-IE
		  myWidth = window.innerWidth;
		  myHeight = window.innerHeight;
	 } else if( document.documentElement &&
		   ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
		  //IE 6+ in 'standards compliant mode'
		  myWidth = document.documentElement.clientWidth;
		  myHeight = document.documentElement.clientHeight;
	 } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
		  //IE 4 compatible
		  myWidth = document.body.clientWidth;
		  myHeight = document.body.clientHeight;
	 }
    //	 alert(myHeight);
	return myHeight;
}

function canResizeFlash(){
	var ua = navigator.userAgent.toLowerCase();
	var opera = ua.indexOf("opera");
	if( document.getElementById ){
		if(opera == -1) return true;
		else if(parseInt(ua.substr(opera+6, 1)) >= 7) return true;
	}
	return false;
}



/*	Unobtrusive Flash Objects (UFO) v1.01 <http//www.bobbyvandersluis.com/ufo/>
	Copyright 2005 Bobby van der Sluis
	This software is licensed under the CC-GNU LGPL <http://creativecommons.org/licenses/LGPL/2.1/>
	------------------------------
	v1.01 Fixed bug: Added missing quotes around attribute values
	
	Internal (Tonic): Changed display to visibility - stops jump in ie
*/

var UFO = {
	requiredAttrParams: ["movie", "width", "height", "majorversion", "build"],
	optionalAttrEmb: ["name", "swliveconnect", "align"],
	optionalAttrObj: ["id", "align"],
	optionalAttrParams: ["play", "loop", "menu", "quality", "scale", "salign", "wmode", "bgcolor", "base", "flashvars", "devicefont", "allowscriptaccess"],
	
	create: function(FO, id) {
		UFO.setElementDisplay(id, "hidden");
		var loadfn = function() {
			if (UFO.hasRequiredAttrParams(FO) && UFO.hasFlashVersion(FO.majorversion, FO.build)) {
				UFO.writeFlashObject(FO, id);
			}
			UFO.setElementDisplay(id, "visible");
		};
		UFO.addLoadEvent(loadfn);
	},

	setElementDisplay: function(id, display) {
		if (!document.createElement || !document.getElementsByTagName) return;
		var selector = "#" + id;
		var property = "visibility: " + display;
		var style = document.createElement("style");
		style.setAttribute("type", "text/css");
		style.setAttribute("media", "screen");
		document.getElementsByTagName("head")[0].appendChild(style);
		var agt = navigator.userAgent.toLowerCase(); 
		var is_ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
		var is_win = (agt.indexOf("win") != -1);
		if (!(is_ie && is_win)) {
			var styles = document.getElementsByTagName("style");
			if (styles && styles.length > 0 && document.createTextNode) {
				var lastStyle = styles[styles.length - 1];
				var rule = document.createTextNode(selector + " {" + property + ";}");
				lastStyle.appendChild(rule); // Hopelessly bugs in IE/Win
			}
		}
		else if (document.styleSheets && document.styleSheets.length > 0) {
			var stylesheet = document.styleSheets[document.styleSheets.length - 1];
			if (typeof stylesheet.addRule == "object"){ // This test bugs in IE/Mac and Safari
				stylesheet.addRule(selector, property);
			}
		}
	},

	hasRequiredAttrParams: function(FO) {
		for (var i = 0; i < UFO.requiredAttrParams.length; i++) {
			if (typeof FO[UFO.requiredAttrParams[i]] == "undefined") return false;
		}
		return true;
	},
	
	hasFlashVersion: function(majorVersion, build) {
		var reqVersion = parseFloat(majorVersion + "." + build);
		if (navigator.plugins && typeof navigator.plugins["Shockwave Flash"] == "object") {
			var desc = navigator.plugins["Shockwave Flash"].description;
			if (desc) {
				var descArr = desc.split(" ");
				var majorArr = descArr[2].split(".");
				var major = majorArr[0];
				if (descArr[3] != "") {
					var minorArr = descArr[3].split("r");
				}
				else {
					var minorArr = descArr[4].split("r");
				}
				var minor = minorArr[1] > 0 ? minorArr[1] : 0;
				var flashVersion = parseFloat(major + "." + minor);
			}
		}
		else if (window.ActiveXObject) {
			try {
				var flash = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
				var desc = flash.GetVariable("$version");
				if (desc) {
					var descArr = desc.split(" ");
					var versionArr = descArr[1].split(",");        
					var major = versionArr[0];
					var minor = versionArr[2];
					var flashVersion = parseFloat(major + "." + minor);
				}
			}
			catch(e) {}
		}
		if (typeof flashVersion != "undefined"){
			return (flashVersion >= reqVersion ? true : false); 
		}
		return false;
	},

	writeFlashObject: function(FO, id) {
		if (!document.getElementById) return;
		var el = document.getElementById(id);
		if (typeof el.innerHTML == "undefined") return;
		var embHTML = "";
		var objAttrHTML = "";
		var objParamHTML = "";
		
		// manually add resize param  (rjh)
		var canresize =  canResizeFlash ? "true" : "false";
		//objParamHTML += '<param name="allowResize" value="' + canresize + '" />';
		//embHTML += ' allowResize="' + canresize  + '"';
		
		UFO.optionalAttrParams["flashvars"] += '&amp;allowResize="' + canresize  + '"';
		
		for (var i = 0; i < UFO.optionalAttrEmb.length; i++) {
			if (typeof FO[UFO.optionalAttrEmb[i]] != "undefined" && FO[UFO.optionalAttrEmb[i]] != "") {
				embHTML += ' ' + UFO.optionalAttrEmb[i] + '="' + FO[UFO.optionalAttrEmb[i]] + '"';
			}
		}
		for (var i = 0; i < UFO.optionalAttrObj.length; i++) {
			if (typeof FO[UFO.optionalAttrObj[i]] != "undefined" && FO[UFO.optionalAttrObj[i]] != "") {
				objAttrHTML += ' ' + UFO.optionalAttrObj[i] + '="' + FO[UFO.optionalAttrObj[i]] + '"';
			}
		}
		for (var i = 0; i < UFO.optionalAttrParams.length; i++) {
			if (typeof FO[UFO.optionalAttrParams[i]] != "undefined" && FO[UFO.optionalAttrParams[i]] != "") {
				
				// RJH condition : add resize into flashvars array
				if (UFO.optionalAttrParams[i] == "flashvars") {
					FO[UFO.optionalAttrParams[i]] = 'allowResize=' + canresize  + '&amp;' + FO[UFO.optionalAttrParams[i]]
				}
				
				embHTML += ' ' + UFO.optionalAttrParams[i] + '="' + FO[UFO.optionalAttrParams[i]] + '"';
				objParamHTML += '<param name="' + UFO.optionalAttrParams[i] + '" value="' + FO[UFO.optionalAttrParams[i]] + '" />';
			}
		}
			   
		if (navigator.plugins && typeof navigator.plugins["Shockwave Flash"] == "object") {
			var foHTML = '<embed type="application/x-shockwave-flash" src="' + FO.movie + '" width="' + FO.width + '" height="' + FO.height + '" pluginspage="http://www.macromedia.com/go/getflashplayer"';
			foHTML += embHTML;
			foHTML += '></embed>';
		}
		else {
			var foHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"' + objAttrHTML + ' width="' + FO.width + '" height="' + FO.height + '" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=' + FO.majorversion + ',0,' + FO.build + ',0">';
			foHTML += '<param name="movie" value="' + FO.movie + '" />';
			foHTML += objParamHTML;
			foHTML += '</object>';
		}
		el.innerHTML = foHTML;
	},

	addLoadEvent: function(fn) {
		if (window.addEventListener) {
			window.addEventListener("load", fn, false);
		}
		else if (document.addEventListener) {
			document.addEventListener("load", fn, false);
		}
		else if (window.attachEvent) {
			window.attachEvent("onload", fn);
		}
		else if (typeof window.onload == "function") {
			var fnOld = window.onload;
			window.onload = function(){
				fnOld();
				fn();
			};
		}
		else {
			window.onload = fn;
		}
	}
};