function formSubmit( m ) {
  if(m == 1) {
  	var keyword = document.getElementById('key1').value;
	if ( keyword == ("产品搜索") ){
	  alert('请输入关键字');
	  return;
	} else {
	  document.getElementById('form1').submit();
	}
  }
  if ( m ==2 ) {
  	var keyword = document.getElementById('key2').value;
	if (keyword == "新闻搜索"){
	  alert('请输入关键字');
	  return;
	} else {
      document.getElementById('form2').submit();	
	}
  }
}
function checkCookieExist(){ 
    if(cookie("LoginName")!=""&&cookie("LoginName")!=null){
       document.getElementById("loginName").innerHTML="您好"+cookie("LoginName")+ ",&nbsp;&nbsp;<a href=\"\" onclick='delCookie(\"LoginName\")'>[退出]</a>";
    } else {
        document.getElementById("loginName").innerHTML="您好,欢迎您的光临&nbsp;&nbsp;<a href=\"http://shop.eprint.cn/login/login.aspx\" target=\"_blank\">[请登录]</a>&nbsp;&nbsp;<a href=\"http://shop.eprint.cn/login/register.aspx\" target=\"_blank\">[免费注册]</a>";
       
   }
}
function cookie(name){    
   var cookieArray=document.cookie.split("; "); //得到分割的cookie名值对    
   var cookie=new Object();    
   for (var i=0;i<cookieArray.length;i++){    
      var arr=cookieArray[i].split("=");       //将名和值分开    
      if(arr[0]==name)return unescape(arr[1]); //如果是指定的cookie，则返回它的值    
   } 
   return ""; 
} 
function delCookie(name)//删除cookie
{
   document.cookie = name+"=;expires="+(new Date(0)).toGMTString();
}