// JavaScript Document
<!--
function welcome()
	 {
	  document.getElementById('welcome').style.visibility='visible';
	  document.getElementById('about').style.visibility='hidden';
	  document.getElementById('features').style.visibility='hidden';
	  document.getElementById('requirements').style.visibility='hidden';
	 }
	 function about()
	 {
	  document.getElementById('welcome').style.visibility='hidden';
	  document.getElementById('about').style.visibility='visible';
	  document.getElementById('features').style.visibility='hidden';
	  document.getElementById('requirements').style.visibility='hidden';
	 }
	function features()
	 {
	  document.getElementById('welcome').style.visibility='hidden';
	  document.getElementById('about').style.visibility='hidden';
	  document.getElementById('features').style.visibility='visible';
	  document.getElementById('requirements').style.visibility='hidden';
	 }
	 function requirements()
	 {
	  document.getElementById('welcome').style.visibility='hidden';
	  document.getElementById('about').style.visibility='hidden';
	  document.getElementById('features').style.visibility='hidden';
	  document.getElementById('requirements').style.visibility='visible';
	 }

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function javaVersionGreaterOrEqual( requirement )
{
	/* determine java plugin version */
	var numPlugins = navigator.plugins.length;
	var pluginName = 'not set';
	var javaVer = '0.0.0';

	if( navigator.javaEnabled() && numPlugins ) {
		for( var i = 0; i < numPlugins; i++){
			pluginName = navigator.plugins[i].name.toLowerCase();
			var startIdx = pluginName.indexOf('plug-in');

			if( pluginName.indexOf('java') != -1 && startIdx != -1 ) {
				startIdx += 8;
				javaVer = pluginName.substring( startIdx, startIdx + 5 );
				break;
			}
		}
	}
	else {
		return false;
	}

	/* determine if the installed java version is greater than the requirement */
	if( java.version.charAt( 0 ) > requirement.charAt( 0 ) ) {
		return true;
        }

	if( java.version.charAt( 0 ) == requirement.charAt( 0 ) ) {
		if( java.version.charAt( 2 ) > requirement.charAt( 2 ) ) {
			return true;
		}

		if( java.version.charAt( 2 ) == requirement.charAt( 2 ) ) {
			if( java.version.charAt( 4 ) >= requirement.charAt( 4 ) ) {
				return true;
			}

			return false;
		}
		else {
			return false;
		}
	}
	else {
		return false;
	}
}

//-->