// JavaScript Document
function checkform()
{
	if (document.search.keyword.value=="" || document.search.keyword.value=="请输入搜索关键字" || ((document.search.keyword.value).indexOf("请输入搜索关键字")) != -1 )
	{
		alert("请输入搜索关键字！");
		return false;
	}
}
function MouseDown()
{
   document.search.Rmkeyword.value = document.search.keyword.value;
   document.search.keyword.value = "";
}
function MouseOut()
{
   if (document.search.keyword.value == "") 
   {
       document.search.keyword.value = document.search.Rmkeyword.value;
       document.search.Rmkeyword.value = "";
   }
}