function WebForm_FireDefaultButton(event, target) 
{
    //event.srcElement doesn't work in FF so we check whether
    //it or event.target exists, using whichever is returned
    var element = event.target || event.srcElement;
    
    if (event.keyCode == 13 &&
        !(element &&        element.tagName.toLowerCase() == "textarea"))         
        {        
        	var defaultButton;        
        	if (__nonMSDOMBrowser)         
        	{            
        		defaultButton = document.getElementById(target);        
        		}         
        		else         
        			{            
        				defaultButton = document.all[target];        
        				}        
        				if (defaultButton && typeof defaultButton.click != "undefined")         
        				{            
        					defaultButton.click();            
        					event.cancelBubble = true;            
        					if (event.stopPropagation)             
        					{                
        						event.stopPropagation();            
        						}            
        						return false;        
        						}    
        						}    
        						return true;
        						}