function change_search(obb,value,butTitle){
	document.getElementById("type_Product").className="search_off";
	document.getElementById("type_Enterprise").className="search_off";
	document.getElementById("type_Info").className="search_off";
	document.getElementById("type_Knowledge").className="search_off";
	obb.className="search_on";
	document.getElementById("searchType").value=value;
	document.getElementById("searchBtn").value=butTitle;
}
function chang_nav_style(obb){
	if(obb.className=="nav_on"){
		obb.className="none";
		document.getElementById("nav_on").className="nav_on"
	}
	else{
		obb.className="nav_on";
		document.getElementById("nav_on").className="none"
	}
}
function Check_Form(formName)
{
	if (formName.keyword.value==""){
		alert("请输入要搜索的关键！");
		formName.keyword.focus();
		}
	else{
	    if (formName.searchType.value==""){
		    formName.searchType.value="Product";
		}
		    keyword=formName.keyword.value;
		    keyword=encodeURIComponent(keyword);
		    //alert(keyword);
	        window.open("search/"+formName.searchType.value+"/"+keyword+".html");
	    }
	return false;
}   

function keySelectHistory()
{
    document.getElementById('keytext').style.display = ''
}

function keySelectHistory3()
{
    //document.getElementById('keytext').style.display = 'none'
}

function keySelectHistory2()
{
    var key=document.getElementById('keyword').value;
    key=encodeURIComponent(key);
    var sendData="key="+key+"";
    
    if (window.XMLHttpRequest) { // Mozilla, Safari, ...
    http_request = new XMLHttpRequest();
    } else if (window.ActiveXObject) { // IE
        http_request = new ActiveXObject("Microsoft.XMLHTTP");
    }


    var linkurl="fun/GetSearchKeyWord.aspx?key="+key;
    http_request.open("GET",linkurl,false);
    http_request.send(null);
    
    document.getElementById('keytext').className="text";
    document.getElementById('keytext').innerHTML =unescape(http_request.responseText);

}

function clickkey(value)
{
    document.getElementById('keyword').value=value;
    document.getElementById('keytext').style.display = 'none';
}