function fEvent(sType,oInput,inpj){ switch (sType){ case "focus" : oInput.isfocus = true; oInput.style.backgroundImage='url('+inpj+')'; case "mouseover" : oInput.style.borderColor = '#FFB941'; if (oInput.value=="") { oInput.style.backgroundImage='url('+inpj+')'; } oInput.style.backgroundColor='#FFFFFF'; break; case "blur" : oInput.isfocus = false; oInput.style.backgroundImage='url('+inpj+')'; case "mouseout" : if(!oInput.isfocus){ oInput.style.borderColor='#BEBEBE'; oInput.style.backgroundImage='url()'; if (oInput.value=="") { oInput.style.backgroundImage='url('+inpj+')'; } } break; } } function ck(form) { if (form.username.value=="") { alert("请输入用户名"); form.username.focus(); return false; } if (form.password.value=="") { alert("请输入密码"); form.password.focus(); return false; } } us_l_txt=""; us_l_txt=us_l_txt+"