function getAcrobatVersion(){
    var acrobat = new Object();
    if (navigator.plugins && navigator.plugins.length){
	    for (x = 0; x < navigator.plugins.length; 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';
			    break;
		    }
	    }
    } else if (window.ActiveXObject) {

	    try {
		    oAcro4=new ActiveXObject('PDF.PdfCtrl.1');
		    if (oAcro4) {
			    acrobat.version = '4.0';
		    }
	    } catch(e) {
        }
        
        for (x=5; x < 7; x++){
            try {
                oAcro=eval("new ActiveXObject('PDF.PdfCtrl." + x + "');");
                if (oAcro) {
                    acrobat.version = x + '.0';
                }
            } catch(e) {
            }
        }
         
        try {
            oAcro7=new ActiveXObject('AcroPDF.PDF.1');
            if (oAcro7){
                acrobat.installed=true;
                if (oAcro7.getVersions().indexOf('7.') != -1){
                    acrobat.version = '7.0';
                }else if (oAcro7.getVersions().indexOf('8.') != -1){
                    acrobat.version = '8.0';
                }else if (oAcro7.getVersions().indexOf('9.') != -1){
                    acrobat.version = '9.0';
                }
            }
        }catch(e) {
        }
    }
    return acrobat.version;
}