var CurrentProject = 1000;
//导航切换
function SearchSwitch(curNum,maxNum)
{
	var Pre = "sousuo_common_nav";
	var CurClassName = "ss_nav1";//当前样式
	var DefaultClassName = "ss_nav2";//缺省样式
	var CurForm = document.getElementById("sousuo_common_form");//获取当前表单
	var CurKeyText = document.getElementById("sousuo_common_keywords");//当前输入框
	var CurHotKey = document.getElementById("sousuo_common_hotkey");//热门关键词
	var CurSrcID = Pre + curNum;//当前元素ID	
	var CurSrc = document.getElementById(CurSrcID);//获取当前元素	
	
	for(i = 1;i < maxNum;i++)
    {
		var TempSrcID = Pre + i;
		var TempSrc = document.getElementById(TempSrcID);
		
		if(TempSrc)
		{
			if(curNum == i)
				TempSrc.className = CurClassName;
			else
				TempSrc.className = DefaultClassName;
		}
    }
    var CurKeyTextValue = CurKeyText.value;
	switch(curNum)
	{
		case 1:
		{
			CurForm.action="http://search.178b2b.com/sell.aspx";
			if(CurKeyTextValue == "" || CurKeyTextValue.indexOf("请输入") != -1)
				CurKeyText.value="请输入您想采购的产品名称!";	
			break;
		}
		case 2:
		{
			CurForm.action="http://search.178b2b.com/company.aspx";
			if(CurKeyTextValue == "" || CurKeyTextValue.indexOf("请输入") != -1)
				CurKeyText.value="请输入产品名或公司名关键词!";
			break;
		}
		case 3:
		{
			CurForm.action="http://buy.178b2b.com/search.aspx";
			if(CurKeyTextValue == "" || CurKeyTextValue.indexOf("请输入") != -1)
				CurKeyText.value="请输入您感兴趣的产品关键词!";
			break;
		}
		case 4:
		{
			CurForm.action="http://zsdl.178b2b.com/search.aspx?sousuo=1";
			if(CurKeyTextValue == "" || CurKeyTextValue.indexOf("请输入") != -1)
				CurKeyText.value="请输入产品关键词查找相关代理信息!";		
			break;
		}
		case 5:
		{
			CurForm.action="http://search.178b2b.com/info.aspx";
			if(CurKeyTextValue == "" || CurKeyTextValue.indexOf("请输入") != -1)
				CurKeyText.value="请输入您感兴趣的关键词,如:\"商机\" \"赚钱\"";			
			break;
		}
		case 6:
		{
			CurForm.action="http://search.178b2b.com/image.aspx";
			if(CurKeyTextValue == "" || CurKeyTextValue.indexOf("请输入") != -1)
				CurKeyText.value="请输入您要查找的图片名称!";
			break;
		}
		case 7:
		{
			CurForm.action="http://search.178b2b.com/used.aspx";
			if(CurKeyTextValue == "" || CurKeyTextValue.indexOf("请输入") != -1)
				CurKeyText.value="请输入关键词查找相关二手信息!";
			break;
		}
		default:
			break;
	}
}
//提交验证
function SearchSubmitValidate()
{
	var CurForm = document.getElementById("sousuo_common_form");//获取当前表单
	var CurKeyText = document.getElementById("sousuo_common_keywords");//当前输入框
	var CurKeyValue = CurKeyText.value;
	if(CurKeyValue.substring(0,3) =="请输入" || CurKeyValue.replace(/^\s+$/,'') == "")
	{
		alert("请输入查询内容！");
		CurKeyText.focus();
		return false;
	}
	return true;
}
//关键词文本框聚焦
function KeywordTextFocus(src)
{
	if(src.value.replace(/^\s+$/,'').indexOf("请输入") != -1)
		src.value = "";
}