var agt=navigator.userAgent.toLowerCase();
function getBrowser()
{
var v_maj=parseInt(navigator.appVersion);
var v_min=parseFloat(navigator.appVersion);
is_nav=((agt.indexOf('mozilla')!=-1)&&(agt.indexOf('spoofer')==-1)&&
	(agt.indexOf('compatible')==-1)&&(agt.indexOf('opera')==-1)&&
	(agt.indexOf('webtv')==-1));
is_nav3=(is_nav&&(v_maj==3));
is_nav4up=(is_nav&&(v_maj>=4));
is_nav407up=(is_nav&&(v_min>=4.07));
is_nav408up=(is_nav&&(v_min>=4.08));
is_ie=(agt.indexOf("msie")!=-1);
is_ie3=(is_ie&&(v_maj<4));
is_ie4=(is_ie&&(v_maj==4)&&(agt.indexOf("msie 5.0")==-1));
is_ie4up=(is_ie&&(v_maj>=4));
is_ie5=(is_ie&&(v_maj==4)&&(agt.indexOf("msie 5.0")!=-1));
is_ie5up=(is_ie&&!is_ie3&&!is_ie4);
is_win=((agt.indexOf("win")!=-1)||(agt.indexOf("16bit")!=-1));
is_win95=((agt.indexOf("win95")!=-1)||(agt.indexOf("windows 95")!=-1));
is_win98=((agt.indexOf("win98")!=-1)||(agt.indexOf("windows 98")!=-1));
is_winnt=((agt.indexOf("winnt")!=-1)||(agt.indexOf("windows nt")!=-1));
is_win32=(is_win95||is_winnt||is_win98||
	((v_maj>=4)&&(navigator.platform=="Win32"))||
	(agt.indexOf("win32")!=-1)||(agt.indexOf("32bit")!=-1));
is_mac=(agt.indexOf("mac")!=-1);
is_macPPC=(is_mac&&((agt.indexOf("ppc")!=-1)||(agt.indexOf("powerpc")!=-1)));
}
function isSVGPluginInstalled()
{
return (navigator.mimeTypes["image/svg"]&&navigator.mimeTypes["image/svg"].enabledPlugin!=null)||
       (navigator.mimeTypes["image/svg-xml"]&&navigator.mimeTypes["image/svg-xml"].enabledPlugin!=null);
}
function checkSVGViewer()
{
window.askForSVGViewer=false;
if(window.svgInstalled) return; getBrowser();
if(is_win32 && is_ie4up) {
window.svgViewerAvailable=true;
window.svgInstalled=isSVGControlInstalled();
if(!window.svgInstalled){window.askForSVGViewer=true;}
}
else if((is_win32 && is_nav4up) || (is_macPPC && is_nav407up)) {
window.svgViewerAvailable=true;
window.svgInstalled=isSVGPluginInstalled();
if(!window.svgInstalled&&is_nav408up&&navigator.javaEnabled()) window.askForSVGViewer=true;
}
else if(is_macPPC && is_ie5up) window.svgViewerAvailable=true;
}
function checkAndGetSVGViewer()
{
if((navigator.appName.toLowerCase().indexOf('opera')!=-1)||(navigator.userAgent.toLowerCase().indexOf('opera')!=-1))
{viewerInstall="yes";}
else
{if(agt.indexOf('mozilla')!=-1)
{var RevNr=parseFloat(agt.substr(agt.indexOf('rv:')+3,3));
if(RevNr>1.7){viewerInstall="mozSVG";}
else{checkSVGViewer();finalCheck();}
}
else{checkSVGViewer();finalCheck();}
}
}
function finalCheck()
{
if(window.svgInstalled)
{viewerInstall="yes";}
else{if (window.askForSVGViewer || window.svgViewerAvailable){viewerInstall="no"}
else{viewerInstall="unavailable"}
}
}
function svgOutput(svgFile,svgHeight,svgSearch)
{
document.write('<p><embed src="'+svgFile+'" name="SVGimage" height='+svgHeight+' width=516'+
' type="image/svg-xml" pluginspace="http://www.adobe.com/svg/viewer/install/"></p> ');
var OperaSVG = (agt.indexOf('opera')!=-1 && parseInt(navigator.appVersion) >= 8);
if(!OperaSVG)
{
document.write('<p class="mag"><b>Navigation</b></p> '+
'<ol> '+
'<li>Press the Alt key and hold it down.</li> '+
'<li>Left-click on the image and hold the left mouse button '+
'down. The image will follow the mouse movements until the '+
'left mouse button is released.</li> '+
'</ol> '+
'<p class="mag"><b>Zooming</b></p> '+
'<ol> '+
'<li>Press the Ctrl key and hold it down. '+
'The mouse pointer turns into a magnifying glass.</li> '+
'<li>Now, either left-click on the image to zoom in, or hold '+
'the left mouse button down and drag over the graph window. '+
'A rubber band appears. This causes a zoom factor to be '+
'calculated so that just the area inside the rubber band '+
'is magnified to fit in the graph window after the left '+
'mouse button is released.</li> '+
'<li>To zoom out, hold the two keys Ctrl and Shift down, '+
'followed by left-clicking on the image.</li> '+
'</ol>');
if(svgSearch>0)
{
document.write('<p class="mag"><b>Image search</b></p> '+
'<p align=justify>If you are using the Adobe SVG Viewer, right-click on the image and select "Find..." '+
'from the context menu. Use the Find dialog box to search the image for node '+
'labels.</p>');
}
}
}
function htmlOutput(bgHeight,bgURL,altURL)
{
document.write('<table cellpadding=0 cellspacing=0 border=0 width=516>'+
'<tr><td width=516 height='+bgHeight+' background="'+bgURL+'" valign=middle>'+
'<p class="mag"><b>SVG Viewer required</b></p> '+
'<p align=justify>In order to view SVG you must first download and install the free '+
'<a href="http://www.adobe.com/svg/viewer/install/main.html">Adobe SVG Viewer</a>. '+
'For a non-SVG version of this page, see '+altURL+'.</p>'+
'</td></tr></table>');
}
function mozOutput(bgHeight,bgURL,altURL)
{
document.write('<table cellpadding=0 cellspacing=0 border=0 width=516>'+
'<tr><td width=516 height='+bgHeight+' background="'+bgURL+'" valign=middle>'+
'<p class="mag"><b>Dear FireFox/Mozilla User,</b></p> '+
'<p align=justify>normally, we ask our SVG gallery visitors to <a href="../faqs/svg.html">download and install a free '+
'SVG Viewer plug-in</a> in order to view this page. '+
'However, since the browser you are using implements native SVG support, you can '+
'view this SVG example right away by clicking <a href="'+altURL+'">here</a>.</p>'+
'</td></tr></table>');
}
function foxOutput(svgFile,svgHeight)
{
document.write('<p><object data="'+svgFile+'" height='+svgHeight+' width=516></p>\n'+
'<ul class="linkList"><li><a href="'+svgFile+'" target="drai">Open in separate tab/window</a></li></ul>');
}
function safariOutput(bgHeight,bgURL,altURL)
{
document.write('<table cellpadding=0 cellspacing=0 border=0 width=516>'+
'<tr><td width=516 height='+bgHeight+' background="'+bgURL+'" valign=middle>'+
'<p class="mag"><b>Dear Safari User,</b></p> '+
'<p align=justify>normally, we ask our SVG gallery visitors to <a href="../faqs/svg.html">download and install a free '+
'SVG Viewer plug-in</a> in order to view this page. '+
'However, since the browser you are using implements native SVG support, you can '+
'view this SVG example right away by clicking <a href="'+altURL+'">here</a>.</p>'+
'</td></tr></table>');
}