// javascript document
function trim(sinputstring)
{
	var stmpstr=' ';
	var i=-1;
	while(stmpstr == ' ')
    {
     ++i
      stmpstr = sinputstring.substr(i,1)
    }
    sinputstring = sinputstring.substring(i)
    
	stmpstr = ' '
    i = sinputstring.length
    while(stmpstr == ' ')
   {
     --i
     stmpstr = sinputstring.substr(i,1)
   }
   sinputstring = sinputstring.substring(0,i+1)
   
   return sinputstring

}
function addproduct()
	{
		  if (form.product_name.value=="")
		  {
		    alert("型号不能为空！");
			form.product_name.focus();
			return false;
		  }
		  if (form.smallimage.value=="")
		  {
		    alert("图片不能为空！");
			form.smallimage.focus();
			return false;
		  }
	return true;
	}
	
function manageproduct()
	{
		  if (form.product_name.value=="")
		  {
		    alert("型号不能为空！");
			form.product_name.focus();
			return false;
		  }
	return true;
	}
function addnews()
	{
		  if (form.news_title.value=="")
		  {
		    alert("标题不能为空！");
			form.news_title.focus();
			return false;
		  }
		  if (form.news_from.value=="")
		  {
		    alert("来源不能为空！");
			form.news_from.focus();
			return false;
		  }
		  if (form.news_cateid.value=="9999")
		  {
		    alert("请选择栏目！");
			form.news_cateid.focus();
			return false;
		  }
	return true;
	}
	
function addsupport()
	{
		  if (form.support_title.value=="")
		  {
		    alert("标题不能为空！");
			form.support_title.focus();
			return false;
		  }
		  if (form.support_from.value=="")
		  {
		    alert("来源不能为空！");
			form.support_from.focus();
			return false;
		  }
	return true;
	}
	
function addcase()
	{
		  if (form.case_title.value=="")
		  {
		    alert("标题不能为空！");
			form.news_title.focus();
			return false;
		  }
	return true;
	}
	
function checkpass()
	{
		  if (form.old_pass.value=="")
		  {
		    alert("旧密码不能为空！");
			form.old_pass.focus();
			return false;
		  }
		  if (form.new_pass.value=="")
		  {
		    alert("新密码不能为空！");
			form.new_pass.focus();
			return false;
		  }
	return true;
	}
	
function addjob()
	{
		  if (form.job_title.value=="")
		  {
		    alert("标题不能为空！");
			form.job_title.focus();
			return false;
		  }
	return true;
	}
function isemail(feedback_mail)
{
	var pattern=/^[a-za-z0-9\-]+\@[a-za-z0-9\-\.]+\.([a-za-z]{2,3})$/;
	return pattern.test(feedback_mail);
}	
function checkagent()
	{
		  if (agent.agent_title.value=="")
		  {
		    alert("主题不能为空！");
			agent.agent_title.focus();
			return false;
		  }
		  if (agent.agent_name.value=="")
		  {
		    alert("姓名不能为空！");
			agent.agent_name.focus();
			return false;
		  }
		  if (agent.agent_diqu.value=="")
		  {
		    alert("所在地区不能为空！");
			agent.agent_diqu.focus();
			return false;
		  }
		   if (agent.agent_mail.value=="")
		  {
		    alert("e-mail不能为空！");
			agent.agent_mail.focus();
			return false;
		  }
		  else if (agent.agent_mail.value.charat(0)=="." ||
		     agent.agent_mail.value.charat(0)=="@" ||
			  agent.agent_mail.value.indexof('@',0) == -1 ||
			  agent.agent_mail.value.indexof('.',0) == -1 ||
			 agent.agent_mail.value.lastindexof('@') == agent.agent_mail.value.length-1 ||
			 agent.agent_mail.value.lastindexof(".") == agent.agent_mail.value.length-1)
		 {
		   alert("e-mail格式错误!");
		  agent.agent_mail.select();
		   return false;
		 }
		  if (agent.agent_tel.value=="")
		  {
		    alert("座机或电话不能为空！");
			agent.agent_tel.focus();
			return false;
		  }
		 
		  if (agent.imgid.value=="")
		  {
		    alert("验证码不能为空！");
			agent.imgid.focus();
			return false;
		  }
	return true;
	}

function checkfeedback()
	{
		  if (feedback.feedback_title.value=="")
		  {
		    alert("主题不能为空！");
			feedback.feedback_title.focus();
			return false;
		  }
		  if (feedback.feedback_name.value=="")
		  {
		    alert("姓名不能为空！");
			feedback.feedback_name.focus();
			return false;
		  }
		  if (feedback.feedback_diqu.value=="")
		  {
		    alert("所在地区不能为空！");
			feedback.feedback_diqu.focus();
			return false;
		  }
		   if (feedback.feedback_mail.value=="")
		  {
		    alert("e-mail不能为空！");
			feedback.feedback_mail.focus();
			return false;
		  }
		  else if (feedback.feedback_mail.value.charat(0)=="." ||
		     feedback.feedback_mail.value.charat(0)=="@" ||
			  feedback.feedback_mail.value.indexof('@',0) == -1 ||
			  feedback.feedback_mail.value.indexof('.',0) == -1 ||
			 feedback.feedback_mail.value.lastindexof('@') == feedback.feedback_mail.value.length-1 ||
			 feedback.feedback_mail.value.lastindexof(".") == feedback.feedback_mail.value.length-1)
		 {
		   alert("e-mail格式错误!");
		  feedback.feedback_mail.select();
		   return false;
		 }
		  if (feedback.feedback_tel.value=="")
		  {
		    alert("座机或电话不能为空！");
			feedback.feedback_tel.focus();
			return false;
		  }
		  if (feedback.feedback_content.value=="")
		  {
		    alert("详细内容不能为空！");
			feedback.feedback_content.focus();
			return false;
		  }
		  if (feedback.imgid.value=="")
		  {
		    alert("验证码不能为空！");
			feedback.imgid.focus();
			return false;
		  }
	return true;
	}