var swf = false;

var swfAllow = (window.location.search.indexOf('flash=0')+1) ? false : true;



// User Preferences code begins



function getCookie(name)

{

  var dc = document.cookie;

  var prefix = name + "=";

  var begin = dc.indexOf("; " + prefix);

  if (begin == -1) {

        begin = dc.indexOf(prefix);

        if (begin != 0) return null;

  } else

        begin += 2;

  var end = document.cookie.indexOf(";", begin);

  if (end == -1)

        end = dc.length;

  return unescape(dc.substring(begin + prefix.length, end));

}



function checkFlashPref() {

  // session preference overrides persistent user preference

  if (getCookie("sessionpref") == 1) {

    swfAllow = false;

    return;

  }

}



//checkFlashPref();



// User Preferences code ends



function hasFlash(ver) {

  if(!swfAllow) return false;

  if(!ver) ver = 0;

	var n = navigator;

  if(n.plugins && n.plugins.length > 0) {

    var m,t,d,v;

    m = n.mimeTypes;

    t = 'application/x-shockwave-flash';

    if(m && m[t] && m[t].enabledPlugin && m[t].enabledPlugin.description) {

      d = m[t].enabledPlugin.description;

      v = d.charAt(d.indexOf('.')-1);

			swf = (v >= ver) ? true : false;

    }

  } else if(n.appVersion.indexOf("Mac") == -1 && window.execScript) {

    for(var i=ver; i<=7&&i!=1&&swf!=true; i++) {

      execScript('on error resume next: swf=IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash'+((i==0)?'':'.'+i)+'"))','VBScript');

    }

	} else {

	  swf = false;

	}

	return swf;

}



function switchFlash() {

  var val = (swfAllow) ? '0' : '1';

	var s = window.location.href.split('#')[0];

  if(window.location.search) {

	  if(s.indexOf('flash=')+1) {

		  s = s.replace('flash='+s.split('flash=')[1].split('&')[0],'flash='+val);

		} else {

		  s += '&flash='+val;

		}

	} else {

	  s += '?flash='+val;

	}

	window.location.href = s;

}



function allowFlash() {

  if((!hasFlash(5)) && (swfAllow)) return '';

  var s = '<a href="#" onclick="switchFlash(); return false;" class="headerLnk">+ ';

	s += (swfAllow) ? 'Non-Flash Version' : 'Flash Version' ;

	s += '</a><br />';

	return s;

}



function newAllowFlash() {

  if((!hasFlash(5)) && (swfAllow)) return '';

  var s = '<a href="#" onclick="switchFlash(); return false;" class="newHeaderLnk">+ ';

	s += (swfAllow) ? 'Non-Flash Version' : 'Flash Version' ;

	s += '</a><br />';

	return s;

}



function moveFocus(id) {

  var o = document.getElementById(id);

	if(o) o.focus();

}