var acrobat=new Object();

acrobat.installed=false;
acrobat.version='0.0';

if (navigator.plugins && navigator.plugins.length)
{
	for ( var x = 0, l = navigator.plugins.length; x < l; ++x ) 
	{
		if (navigator.plugins[x].description.indexOf('Adobe Acrobat') != -1)
		{
			acrobat.version=parseFloat(navigator.plugins[x].description.split('Version ')[1]);
			if (acrobat.version.toString().length == 1) acrobat.version+='.0';
			acrobat.installed=true;
			break;
		}
	}
}
else if (window.ActiveXObject)
{
	for (x=2; x<10; x++)
	{
		try
		{
			oAcro=eval("new ActiveXObject('PDF.PdfCtrl."+x+"');");
			if (oAcro)
			{
				acrobat.installed=true;
				acrobat.version=x+'.0';
			}
		}
		catch(e) {}
	}

	try
	{
		oAcro4=new ActiveXObject('PDF.PdfCtrl.1');
		if (oAcro4)
		{
			acrobat.installed=true;
			acrobat.version='4.0';
		}
	}
	catch(e) {}

	try
	{
		oAcro7=new ActiveXObject('AcroPDF.PDF.1');
		if (oAcro7)
		{
			acrobat.installed=true;
			acrobat.version='7.0';
		}
	}
	catch(e) {}

}

if (acrobat.installed)
{
	var obj = document.getElementById('linktoacrobat');
	if (obj)
		obj.style.display = 'none';
}