getSilverlightVersion = function() { 
	var SLVersion; 
	try {   
	       try {             
				var control = new ActiveXObject('AgControl.AgControl'); 

	            if (control.IsVersionSupported("3.0"))                 
	               SLVersion = 3;             
				else if (control.IsVersionSupported("2.0"))                
	               SLVersion = 2;             
				else 
	               SLVersion = 1;            
				   
	            control = null;       
			} catch (e) {       

				var plugin = navigator.plugins["Silverlight Plug-In"]; 
				if (plugin) {          
					if (plugin.description === "1.0.30226.2")              
						SLVersion = 2;                        
					else 
						SLVersion = parseInt(plugin.description[0]); 
				} else 
					SLVersion = 0; 
	      } 
	} catch (e) {  
	      SLVersion = 0; 
	} 

	return SLVersion; 
}