var strUA; 
strUA = navigator.userAgent;
var browser;
var acrobat_installed;
if (strUA.search("MSIE") > -1) {
	try{
		var acrobat_test = eval(new ActiveXObject("PDF.PdfCtrl"));		
	}catch(e){
		var acrobat_test = new ActiveXObject("AcroPDF.PDF");
	}
	
	acrobat_installed = acrobat_test;	
	browser = "IE";

}else if (strUA.search("Firefox") > -1){

	browser ="Firefox";
	acrobat_installed = navigator.mimeTypes && navigator.mimeTypes["application/pdf"];
	
}else if (strUA.search("Chrome") > -1){	

	browser ="Chrome";
	acrobat_installed = navigator.mimeTypes && navigator.mimeTypes["application/pdf"];
	
}else if (strUA.search("Safari") > -1 ){	

	browser ="Safari";
	acrobat_installed = navigator.mimeTypes && navigator.mimeTypes["application/pdf"];
	
}else{ }