function loginchk(){
	var uid = document.getElementById('LoginName').value.replace(/(^\s*)|(\s*$)/g, "");
	var pw = document.getElementById('LoginPass').value;
	if(uid == ""){
		alert("请输入用户名");
		document.getElementById('LoginName').focus();
		return false;
	}else if(pw == ""){
		alert("请输入登录密码");
		document.getElementById('LoginPass').focus();
		return false;
	}else{
		return true;
	}
}
function setTab(name,cursel,n){
	for(i=1;i<=n;i++){
		var menu=document.getElementById(name+i);
		var main=document.getElementById("upCon"+i);
		menu.className=i==cursel?"current":"";
		main.style.display=i==cursel?"block":"none";
	}
}
function checkbuywd()
{
   var kword=document.getElementById("buywd").value.replace(/(^\s*)|(\s*$)/g, "");
   if(kword=="" || kword=="输入产品名称, 查找求购信息")
   {
      alert("请输入产品名称");document.getElementById("buywd").focus();
      return false;
   }
}
function showHCate(obj)
{
	spanObjs = obj.parentNode.parentNode.parentNode.getElementsByTagName("li");
	sum      = spanObjs.length;
	if (document.getElementById('show_all').className == 'class-name-btn1')
	{
		document.getElementById('show_all').className = '';
		for(i=0;i<sum;i++)
		{
			if(i > 14)
			{
				spanObjs[i].className = "spanhidden";
			}
		}
	}
	else
	{
		for(i=0;i<sum;i++)
		{
			if(spanObjs[i].className == "spanhidden")
			{
				spanObjs[i].className = "";
			}
		}
		obj.className = "spanhidden";
		document.getElementById('show_all').className = 'class-name-btn1';
	}
}
function ctrim(sInputString,iType)
{
	var sTmpStr = ' '
	var i = -1

	if(iType == 0 || iType == 1)
	{
		while(sTmpStr == ' ')
		{
			++i
			sTmpStr = sInputString.substr(i,1)
		}
		sInputString = sInputString.substring(i)
	}

	if(iType == 0 || iType == 2)
	{
		sTmpStr = ' '
		i = sInputString.length
		while(sTmpStr == ' ')
		{
			--i
			sTmpStr = sInputString.substr(i,1)
		}
		sInputString = sInputString.substring(0,i+1)
	}

	return sInputString
}
function check_search(form)
{
	if (ctrim(form.q.value,0) == '请输入求购关键字' || ctrim(form.q.value,0) == '')
	{
		window.alert('请输入求购关键字！');
		form.q.focus();
		form.q.select();
		return false;
	}
	return true;
}
//**************************************//
var queryOnFocusFlag = false;
function showDefaultToolTip(myVal) {
	var queryValue = document.searchbox.q.value;
	if (myVal == "8" || myVal == "7" || myVal == "6" || myVal == "5") {
		if(queryValue=='' || queryValue=='请输入产品名称'||queryValue=='请输入公司名称'){
		document.searchbox.q.value = '请输入关键词';
		}
	} else if (myVal == "4") {
		if(queryValue=='' || queryValue=='请输入产品名称'||queryValue=='请输入关键词'){
		document.searchbox.q.value = '请输入公司名称';
		}
	} else if (myVal == "3" || myVal == "2" || myVal == "1") {
		if(queryValue=='' || queryValue=='请输入公司名称'||queryValue=='请输入关键词'){
		document.searchbox.q.value = '请输入产品名称';
		}
	}
	if(document.searchbox.q.value=='请输入关键词' || document.searchbox.q.value=='请输入产品名称'||document.searchbox.q.value=='请输入公司名称'){
		queryOnFocusFlag=false;
		document.searchbox.q.style.color="#666";
	}
}

function erase(q){
	if(q.value=='请输入产品名称'||q.value=='请输入公司名称'||q.value=='请输入关键词'){
		q.value='';
		q.style.color='#000';
	}
}
function rollbackErase(){
	var myVal = document.searchbox.search_type[document.searchbox.search_type.selectedIndex].value;
	if(!queryOnFocusFlag && document.searchbox.q.value==''){
		showDefaultToolTip(myVal);
		document.searchbox.q.blur();
	}else if(queryOnFocusFlag && document.searchbox.q.value==''){
		document.searchbox.q.focus();
	}
}
function toolTipFocus(q){
	erase(q);
	document.searchbox.q.focus();
	queryOnFocusFlag = true;
}
function toolTipBlur(){
	queryOnFocusFlag = false;
}

function dosearch(v)
{
	var _type = document.getElementById("search_type").value;
	switch(_type)
	{
		case "1":
			document.searchbox.action= "/product/list.php";
		break;
		case "2":
			document.searchbox.action= "/buy/index.php";
		break;
		case "3":
			document.searchbox.action= "/offer/list.php";
		break;
		case "4":
			document.searchbox.action= "/company/list.php";
		break;
		case "5":
			document.searchbox.action= "/news/list.php";
		break;
		case "6":
			document.searchbox.action= "/fair/list.php";
		break;
		case "7":
			document.searchbox.action= "/market/list.php";
		break;
		case "8":
			document.searchbox.action= "/hr/list.php";
		break;
		default:
			document.searchbox.action= "/product/list.php";
		break;
	}
	if (v==true) document.searchbox.submit();
}