function Trim(str){
		  while (str !="" && str.charAt(0) == " ") str = str.substring(1,str.length);
		  while (str !="" && str.charAt(str.length-1) == " ") str = str.substring(0,str.length-1);
		  return str;
		}

function checkvalues()
{
   var sname0 = Trim(document.form1.name.value);
   var semail0 = Trim(document.form1.mailaddr.value);
   var stel0 = Trim(document.form1.phone.value); 
   var sfax0 = Trim(document.form1.fax.value); 
   var scompany0 = Trim(document.form1.company.value);
   //saddress = Trim(saddress);
   var scontent0 = Trim(document.form1.matter.value);
   var pattern1 = /^\d{7,12}$/;///^\d{15}$/; //^(\d{3}-|\d{4}-)?(\d{8}|\d{7})?$; //
   var pattern2=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
 
   if(scontent0=="")
   {
      alert("询价信息或留言内容不能为空,请检查!");
      return false;
   }
   else if(sname0==""||semail0==""||stel0==""||scompany0=="")
   {
      alert("您的详细联系信息不完善,请检查!");
      return false;
   }
   else if(pattern1.exec(stel0)==null)
   {
      alert("电话格式不正确,请检查!");
      return false;
   }
   else if(pattern1.exec(sfax0)==null)
   {
      alert("电话格式不正确,请检查!");
      return false;
   }
   else if(!pattern2.test(semail0))
   {
      alert("E-Mail格式不正确,请检查!");
      return false;
   }
}

function querty2()
	{
		var keyword=Trim(document.form2.itemNo.value);
		if (keyword=="")
			//window.location="listProduct.asp?itemNo="+keyword;
		//else
			{
			   alert("请输入搜索条件");
			   return false;
			}
	}

function querty()
	{
		var keyword1=Trim(document.form1.itemNo.value);
                var keyword2=Trim(document.form1.brand.value);
		if (keyword1=="" && keyword2=="")
			//window.location="listProduct.asp?itemNo="+keyword;
		//else
			{
			   alert("请输入搜索条件");
			   return false;
			}
	}

function querty3()
	{
		var keyword=Trim(document.form2.mykeyword.value);
		if (keyword=="")
			//window.location="listProduct.asp?itemNo="+keyword;
		//else
			{
			   alert("请输入搜索条件");
			   return false;
			}
	}