function CheckSearchForm(f){                                                                  
    if(f.elements["key"].value==''){                                                        
        alert("Âòõô°òõ ¸òèþúó ôûÿ ÿþ°¸ú¨");                                                 
        f.elements["key"].focus();                                                          
        return false;                                                                       
    }                                                                                       
    return true;                                                                            
}  

function CheckMaillistForm(f){                                                  
    var z;                                                                      
    var eles=new Array("email");                                                
    var msgs=new Array("Âòõô°òõ ò¨° email");                                    
    for(i=0;i<eles.length;i++){                                                 
        if(f.elements[eles[i]].value==''){                                      
            alert(msgs[i]);                                                     
            f.elements[eles[i]].focus();                                        
            return false;                                                       
        }                                                                       
    }                                                                           
    return true;                                                                
}