function find_button_to_click(e, button_id) 
{ 
    var btn = document.getElementById(button_id); 
    if (typeof btn == 'object'){
        if(navigator.appName.indexOf("Netscape")>(-1)){ 
            if (e.keyCode == 13){ 
                btn.click(); 
                return false; 
            } 
        } 
        if (navigator.appName.indexOf("Microsoft Internet Explorer")>(-1)){ 
            if (event.keyCode == 13){ 
                btn.click(); 
                return false; 
            } 
        }
    }
} 

function wp_disableEnterKey(evt)
{
	
	 var key;
	 key = (evt) ? evt : ((window.event) ? window.event : "")
	 if (key)
	 {
		if (key.keyCode==13 || key.which==13)
			return false;
		else
			return true;
	 }

}