function toggleauthors()
{
	try{
	var aut= document.getElementById('auth');
	var but = document.getElementById('authbutton');
	var tit = document.getElementById('authtitle');
	if (aut.style.display != "none")
	{
	    aut.style.display = "none";
	    but.src = "/bmcimages/expand2.gif";
	    tit.innerHTML = "authors";
	}
	else
	{
		aut.style.display = "block";
	 	but.src = "/bmcimages/contract2.gif";
	 	tit.innerHTML = "";
	}
	}
	catch(e){}
}

	
function popup(url,n,w,h) 
{
	window.open(url,n,'width='+w+',height='+h+',resizable=yes,scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no');
}

function largepopup(url,n) 
{
	var w=520, h=550;
	if (window.screen) {
		w = screen.availWidth-100;
		h = screen.availHeight-100;
	}
	help = window.open(url,n,'width='+w+',height='+h+',resizable=yes,scrollbars=yes,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,copyhistory=yes');
	help.focus()
	help.moveTo(10,10);
}

function loadhalf(width) {
	var popwidth = typeof width != 'undefined'? width+40 : 640;
	if (popwidth > screen.availWidth) popwidth = screen.availWidth;
	if (popwidth < 640) popwidth = 640;
	window.focus();
	window.moveTo(0,0);
	window.resizeTo(popwidth,screen.availHeight);
	window.blur;
}

function loadfull() 
{
	window.focus();
	window.moveTo(0,0);
	window.resizeTo(screen.availWidth,screen.availHeight);
	window.blur;
}

function loadInParent(link) 
{
	if (parent.window.opener.closed)
		window.open(link);
	else {
		parent.window.opener.location = link;
		parent.window.focus();
        }
}

// Movie embedding. Part 1 - Player detection (incl. version detection), courtesy of http://skyzyx.com/

// QuickTime detection
var quicktime=new Object();
// Set some base values
quicktime.installed=false;
quicktime.version='0.0';
// for non-IE browsers
if (navigator.plugins && navigator.plugins.length)
{
	for (x=0; x<navigator.plugins.length; x++)
	{
		if (navigator.plugins[x].name.indexOf('QuickTime Plug-in') != -1)
		{
			quicktime.installed=true;
			//Store the version, some transformation happens to get the digit dot digit format in all browsers
			quicktime.version=navigator.plugins[x].name.split('QuickTime Plug-in ')[1].split(' ')[0];
			quicktime.version=quicktime.version.split('.')[0]+'.'+quicktime.version.split('.')[1]
			break;
		}
	}
}

// for IE
else if (window.ActiveXObject)
{
	try
	{
		oQTime=new ActiveXObject('QuickTimeCheckObject.QuickTimeCheck.1');
		if (oQTime)
		{
			quicktime.installed=oQTime.IsQuickTimeAvailable(0);
			quicktime.version=parseInt(oQTime.QuickTimeVersion.toString(16).substring(0,3))/100;
		}
	}
	catch(e) {}
}

// Flash detection

// This script will test up to the following version.
flash_versions = 20;

// Initialize variables and arrays
var flash = new Object();
flash.installed=false;
flash.version='0.0';

// Dig through Netscape-compatible plug-ins first.
if (navigator.plugins && navigator.plugins.length) {
	for (x=0; x < navigator.plugins.length; x++) {
		if (navigator.plugins[x].name.indexOf('Shockwave Flash') != -1) {
			flash.version = navigator.plugins[x].description.split('Shockwave Flash ')[1].split(' ')[0];
			flash.installed = true;
			break;
		}
	}
}

// Then, dig through ActiveX-style plug-ins afterwords
else if (window.ActiveXObject) {
	for (x = 2; x <= flash_versions; x++) {
		try {
			oFlash = eval("new ActiveXObject('ShockwaveFlash.ShockwaveFlash." + x + "');");
			if(oFlash) {
				flash.installed = true;
				flash.version = x + '.0';
			}
		}
		catch(e) {}
	}
}

// Movie embedding. Part 2 - Replacing the thumbnail with the embedded movie

var link = true;
function playmovie(id,format,moviename,width,height) {
	var qtheight = height + 16;
	var cond = false;
	
	// Everything that depends on the movie format is in this section, minimum player version and suitable embed code
	switch (format) {
		case "swf":
		cond = document.getElementById && quicktime.version >= 0.0;
		movietext="<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' height='"+ height +"' width='"+ width +"' class='embedded'><param name='src' value='"+ moviename +"' /><!--[if !IE]>--><object data='"+ moviename +"' type='application/x-shockwave-flash' height='"+ height +"' width='"+ width +"' class='embedded'></object><!--<![endif]--></object>";
		break;
		case "mp4":
		cond = document.getElementById && quicktime.version >= 6.0;
		movietext="<object classid='clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B' height='"+ qtheight +"' width='"+ width +"'><param name='src' value='"+ moviename +"' /><!--[if !IE]>--><object data='"+ moviename +"' type='video/quicktime' height='"+ qtheight +"' width='"+ width +"'></object><!--<![endif]--></object>";
		break;
		case "peg":
		;
		case "mpg":
		cond = document.getElementById && quicktime.version >= 6.4;
		movietext="<object classid='clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B' height='"+ qtheight +"' width='"+ width +"'><param name='src' value='"+ moviename +"' /><!--[if !IE]>--><object data='"+ moviename +"' type='video/quicktime' height='"+ qtheight +"' width='"+ width +"'></object><!--<![endif]--></object>";
		break;
		case "avi":
		cond = document.getElementById && quicktime.version >= 3.0;
		movietext="<object classid='clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B' height='"+ qtheight +"' width='"+ width +"'><param name='src' value='"+ moviename +"' /><!--[if !IE]>--><object data='"+ moviename +"' type='video/quicktime' height='"+ qtheight +"' width='"+ width +"'></object><!--<![endif]--></object>";
		break;
		case "mov":
		cond = document.getElementById && quicktime.version >= 3.0 ;
		movietext="<object classid='clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B' height='"+ qtheight +"' width='"+ width +"'><param name='src' value='"+ moviename +"' /><!--[if !IE]>--><object data='"+ moviename +"' type='video/quicktime' height='"+ qtheight +"' width='"+ width +"'></object><!--<![endif]--></object>";
		break;
	}
	
	// This executes the replacement
	if (cond) {
		document.getElementById(id).innerHTML=movietext;
		link = false;
	}
}

// Part 3 - Extra functions For MarvinView

function mview_warn() {
	if (!navigator.javaEnabled()) {
	  	document.write("<p>The molecule will be displayed on this page if <a href='http://www.java.com/download/'>Java</a> is installed and enabled.</p>")
	}
}
function mview_show(format,molname,width,height) {
	mview_begin("/specs/marvin",width,height);
	mview_param(format,molname);
	mview_end();
	document.write("<br /><span class='helptext'>Right-click to adjust display properties</span>");
}

// references
function totext() {
	document.write("<a href='javascript:goback();'>Return to text</a>")
}

//elsewhere
function andtotext() {
	document.write(" | <a href='javascript:goback();'>Return to text</a>")
}

function goback() {
	if (window.location.hash.length > 0) window.history.back(); 
	else window.location="#";
}

//Functions related to FLV movies

// Stopping the movie when another is started
var currentItem;

function getUpdate(typ,pr1,pr2,pid) {

	if (typ == "state") {
	
		// Play 
		if (pr1 == 2) {
		
			// Pause active movie if it is playing.
			if (currentItem != null && currentItem != pid) {
				thisMovie(currentItem).sendEvent('playpause');
			}
			
			// Save current movie
			currentItem = pid;	
					
		// Flush active movie var on Stop (3) and Pause (0).
		} else if(pr1 == 3 || pr1 == 0) {                               
			currentItem = null;
		} 
	}
};

// This is a javascript handler for the player and is always needed.
function thisMovie(movieName) {
    if(navigator.appName.indexOf("Microsoft") != -1) {
		return window[movieName];
	} else {
		return document[movieName];
	}
};




// Replacing the jpeg with the movie
var link = true;
function playvideo(id,moviename,width,height) {
	if (document.getElementById) {
		var flvheight = height + 20;
		var so = new SWFObject('/movies/mediaplayer.swf','js'+id,width,flvheight,'7');  
		so.useExpressInstall('/movies/expressinstall.swf'); 
		so.addParam('allowfullscreen','true');
		so.addParam('salign','lt');
		so.addParam('quality','high');
		so.addParam('scale','noscale');
		so.addVariable('file',moviename);                               
		so.addVariable('autostart','true');
		so.addVariable('showdigits','false');
		so.addVariable('useaudio','false');
		so.addVariable('usefullscreen','true');
		so.addVariable('showicons','false');
		so.addVariable('enablejs','true');
		so.addVariable('javascriptid','js'+id);                                       
		so.addVariable('width',width);
		so.addVariable('height',flvheight);
		so.write(id);
		link = false;
	}
}

/**
 * SWFObject v1.5: Flash Player detection and embed - http://blog.deconcept.com/swfobject/
 *
 * SWFObject is (c) 2007 Geoff Stearns and is released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 */
if(typeof deconcept=="undefined"){var deconcept=new Object();}if(typeof deconcept.util=="undefined"){deconcept.util=new Object();}if(typeof deconcept.SWFObjectUtil=="undefined"){deconcept.SWFObjectUtil=new Object();}deconcept.SWFObject=function(_1,id,w,h,_5,c,_7,_8,_9,_a){if(!document.getElementById){return;}this.DETECT_KEY=_a?_a:"detectflash";this.skipDetect=deconcept.util.getRequestParameter(this.DETECT_KEY);this.params=new Object();this.variables=new Object();this.attributes=new Array();if(_1){this.setAttribute("swf",_1);}if(id){this.setAttribute("id",id);}if(w){this.setAttribute("width",w);}if(h){this.setAttribute("height",h);}if(_5){this.setAttribute("version",new deconcept.PlayerVersion(_5.toString().split(".")));}this.installedVer=deconcept.SWFObjectUtil.getPlayerVersion();if(!window.opera&&document.all&&this.installedVer.major>7){deconcept.SWFObject.doPrepUnload=true;}if(c){this.addParam("bgcolor",c);}var q=_7?_7:"high";this.addParam("quality",q);this.setAttribute("useExpressInstall",false);this.setAttribute("doExpressInstall",false);var _c=(_8)?_8:window.location;this.setAttribute("xiRedirectUrl",_c);this.setAttribute("redirectUrl","");if(_9){this.setAttribute("redirectUrl",_9);}};deconcept.SWFObject.prototype={useExpressInstall:function(_d){this.xiSWFPath=!_d?"expressinstall.swf":_d;this.setAttribute("useExpressInstall",true);},setAttribute:function(_e,_f){this.attributes[_e]=_f;},getAttribute:function(_10){return this.attributes[_10];},addParam:function(_11,_12){this.params[_11]=_12;},getParams:function(){return this.params;},addVariable:function(_13,_14){this.variables[_13]=_14;},getVariable:function(_15){return this.variables[_15];},getVariables:function(){return this.variables;},getVariablePairs:function(){var _16=new Array();var key;var _18=this.getVariables();for(key in _18){_16[_16.length]=key+"="+_18[key];}return _16;},getSWFHTML:function(){var _19="";if(navigator.plugins&&navigator.mimeTypes&&navigator.mimeTypes.length){if(this.getAttribute("doExpressInstall")){this.addVariable("MMplayerType","PlugIn");this.setAttribute("swf",this.xiSWFPath);}_19="<embed type=\"application/x-shockwave-flash\" src=\""+this.getAttribute("swf")+"\" width=\""+this.getAttribute("width")+"\" height=\""+this.getAttribute("height")+"\" style=\""+this.getAttribute("style")+"\"";_19+=" id=\""+this.getAttribute("id")+"\" name=\""+this.getAttribute("id")+"\" ";var _1a=this.getParams();for(var key in _1a){_19+=[key]+"=\""+_1a[key]+"\" ";}var _1c=this.getVariablePairs().join("&");if(_1c.length>0){_19+="flashvars=\""+_1c+"\"";}_19+="/>";}else{if(this.getAttribute("doExpressInstall")){this.addVariable("MMplayerType","ActiveX");this.setAttribute("swf",this.xiSWFPath);}_19="<object id=\""+this.getAttribute("id")+"\" classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" width=\""+this.getAttribute("width")+"\" height=\""+this.getAttribute("height")+"\" style=\""+this.getAttribute("style")+"\">";_19+="<param name=\"movie\" value=\""+this.getAttribute("swf")+"\" />";var _1d=this.getParams();for(var key in _1d){_19+="<param name=\""+key+"\" value=\""+_1d[key]+"\" />";}var _1f=this.getVariablePairs().join("&");if(_1f.length>0){_19+="<param name=\"flashvars\" value=\""+_1f+"\" />";}_19+="</object>";}return _19;},write:function(_20){if(this.getAttribute("useExpressInstall")){var _21=new deconcept.PlayerVersion([6,0,65]);if(this.installedVer.versionIsValid(_21)&&!this.installedVer.versionIsValid(this.getAttribute("version"))){this.setAttribute("doExpressInstall",true);this.addVariable("MMredirectURL",escape(this.getAttribute("xiRedirectUrl")));document.title=document.title.slice(0,47)+" - Flash Player Installation";this.addVariable("MMdoctitle",document.title);}}if(this.skipDetect||this.getAttribute("doExpressInstall")||this.installedVer.versionIsValid(this.getAttribute("version"))){var n=(typeof _20=="string")?document.getElementById(_20):_20;n.innerHTML=this.getSWFHTML();return true;}else{if(this.getAttribute("redirectUrl")!=""){document.location.replace(this.getAttribute("redirectUrl"));}}return false;}};deconcept.SWFObjectUtil.getPlayerVersion=function(){var _23=new deconcept.PlayerVersion([0,0,0]);if(navigator.plugins&&navigator.mimeTypes.length){var x=navigator.plugins["Shockwave Flash"];if(x&&x.description){_23=new deconcept.PlayerVersion(x.description.replace(/([a-zA-Z]|\s)+/,"").replace(/(\s+r|\s+b[0-9]+)/,".").split("."));}}else{if(navigator.userAgent&&navigator.userAgent.indexOf("Windows CE")>=0){var axo=1;var _26=3;while(axo){try{_26++;axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash."+_26);_23=new deconcept.PlayerVersion([_26,0,0]);}catch(e){axo=null;}}}else{try{var axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");}catch(e){try{var axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");_23=new deconcept.PlayerVersion([6,0,21]);axo.AllowScriptAccess="always";}catch(e){if(_23.major==6){return _23;}}try{axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash");}catch(e){}}if(axo!=null){_23=new deconcept.PlayerVersion(axo.GetVariable("$version").split(" ")[1].split(","));}}}return _23;};deconcept.PlayerVersion=function(_29){this.major=_29[0]!=null?parseInt(_29[0]):0;this.minor=_29[1]!=null?parseInt(_29[1]):0;this.rev=_29[2]!=null?parseInt(_29[2]):0;};deconcept.PlayerVersion.prototype.versionIsValid=function(fv){if(this.major<fv.major){return false;}if(this.major>fv.major){return true;}if(this.minor<fv.minor){return false;}if(this.minor>fv.minor){return true;}if(this.rev<fv.rev){return false;}return true;};deconcept.util={getRequestParameter:function(_2b){var q=document.location.search||document.location.hash;if(_2b==null){return q;}if(q){var _2d=q.substring(1).split("&");for(var i=0;i<_2d.length;i++){if(_2d[i].substring(0,_2d[i].indexOf("="))==_2b){return _2d[i].substring((_2d[i].indexOf("=")+1));}}}return "";}};deconcept.SWFObjectUtil.cleanupSWFs=function(){var _2f=document.getElementsByTagName("OBJECT");for(var i=_2f.length-1;i>=0;i--){_2f[i].style.display="none";for(var x in _2f[i]){if(typeof _2f[i][x]=="function"){_2f[i][x]=function(){};}}}};if(deconcept.SWFObject.doPrepUnload){if(!deconcept.unloadSet){deconcept.SWFObjectUtil.prepUnload=function(){__flash_unloadHandler=function(){};__flash_savedUnloadHandler=function(){};window.attachEvent("onunload",deconcept.SWFObjectUtil.cleanupSWFs);};window.attachEvent("onbeforeunload",deconcept.SWFObjectUtil.prepUnload);deconcept.unloadSet=true;}}if(!document.getElementById&&document.all){document.getElementById=function(id){return document.all[id];};}var getQueryParamValue=deconcept.util.getRequestParameter;var FlashObject=deconcept.SWFObject;var SWFObject=deconcept.SWFObject;