function getObj(objName)
{
	return(document.getElementById(objName));
}


function KeyWords_OnClick(Input_Value)
{
	if(Input_Value=="请在此输入搜索关键字")
	{
		document.Search_Form.KeyWords.value="";
	}
}

function KeyWords_OnBlur(Input_Value)
{
	if(Input_Value.length == 0 || checkspace(Input_Value))
	{
		document.Search_Form.KeyWords.value="请在此输入搜索关键字";
	}
}

function Check_Search(theForm)
{
	if (theForm.KeyWords.value.substring(0,5) =="请在此输入" || theForm.KeyWords.value.length == 0 || checkspace(theForm.KeyWords.value))
	{
		alert("请输入搜索关键字！");
		theForm.KeyWords.focus();
		return false;
	}
}

function Check_BDSearch(theForm)
{
	if (theForm.DB_BigClass.value.length==0 || checkspace(theForm.DB_BigClass.value))
	{
		alert("请选择数据库类别！");
		theForm.DB_BigClass.focus();
		return false;
	}

	if (theForm.KeyWords.value.substring(0,5) =="请在此输入" || theForm.KeyWords.value.length == 0 || checkspace(theForm.KeyWords.value))
	{
		alert("请输入搜索关键字！");
		theForm.KeyWords.focus();
		return false;
	}
	
	document.Search_Form.action=theForm.DB_SubClass.value;
}

function checkspace(checkstr)
{
	var str = "";
	
	for(i = 0;i < checkstr.length;i++)
	{
		str = str + " ";
	}
	
	return (str == checkstr);
}

function Check_SearchSelect(Action_Url)
{
	document.Search_Form.action=Action_Url;
}

function Check_SearchRadio(Action_Url)
{
	document.Search_Form.action=Action_Url;
}