var acrobat = new Object();
acrobat.installed = false; 
acrobat.version = '0.0';
if (navigator.plugins && navigator.plugins.length) { 
	for (x = 0; 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) {} 

	// Else logic here if acrobat not detected. Redirect to download page.
	if (acrobat.installed == false) { 
		window.location = 'AcrobatReaderDownload.aspx';
	} 
}