//client side js
function clickButton(e, buttonid){ 
	  var bt = document.getElementById(buttonid); 
	  if (typeof bt == 'object'){ 
			if(navigator.appName.indexOf("Netscape")>(-1)){ 
				  if (e.keyCode == 13){ 
						bt.click(); 
						return false; 
				  } 
			} 
			if (navigator.appName.indexOf("Microsoft Internet Explorer")>(-1)){ 
				  if (event.keyCode == 13){ 
						bt.click(); 
						return false; 
				  } 
			} 
	  } 
}