function check() 
{
	if (login.username.value=="")
	{   alert("input your user nameŁĄ");
			login.username.focus();	    
			return false;
	}
	if (login.password.value=="")
	{   alert("input your passwordŁĄ");
			login.password.focus();	    
			return false;
	}
}
function checkSerForm()
{
 if (sear.cnter_stone_e.value !="")
 {
	if (isNaN(sear.cnter_stone_e.value))
	{
	   alert("find error : not a Number for cnter stone");
	   sear.cnter_stone_e.focus();
	   return false;
	}
	if (isNaN(sear.cnter_stone_s.value))
	{
	   alert("find error : not a Number for cnter stone");
	   sear.cnter_stone_s.focus();
	   return false;
	}
	if (parseInt(sear.cnter_stone_e.value,10) < parseInt(sear.cnter_stone_s.value,10))
	{
	   alert("end must More than start");
	   sear.cnter_stone_s.focus();
	   return false;
	}
 }
 
 if (sear.stone_e.value != "")
 {
	 if (isNaN(sear.stone_e.value))
	 {
		alert("Side Stone Size finally muse a number");
		sear.stone_e.focus();	
		return false;
	 }
	 if (isNaN(sear.stone_s.value))
	 {
		alert("Side stone size start muse a number");
		sear.stone_s.focus();
		return false;
	 }
	 if (parseInt(sear.stone_e.value,10) < parseInt(sear.stone_s.value,10))
	 {
	   alert("end must More than start");
	   sear.stone_s.focus();
	   return false;
	 }
 }
 
 if (sear.stone_pcs_e.value != "")
 {
	 if (isNaN(sear.stone_pcs_e.value))
	 {
		alert("Side Stone (QTY) finally muse a number");
		 sear.stone_pcs_e.focus();
		return false;
	 }
	 if (isNaN(sear.stone_pcs_s.value))
	 {
		alert("Side Stone (QTY) start muse a number");
		 sear.stone_pcs_s.focus();
		return false;
	 }
	 if (parseInt(sear.stone_pcs_e.value,10) < parseInt(sear.stone_pcs_s.value,10))
	 {
	   alert("end must More than start");
	   sear.stone_pcs_s.focus();
	   return false;
	 }
 }
 
 if (sear.silver2.valus != "")
 {
   if (isNaN(sear.silver2.value))
   {
	  alert("silver muse a number");
	  sear.silver2.focus();
	  return false;
   }
   if (isNaN(sear.silver.value))
   {
	  alert("silver muse a number");
	  sear.silver.focus();
	  return false;
   }
   if (parseInt(sear.silver2.value,10) < parseInt(sear.silver.value,10))
   {
	   alert("end must More than start");
	   sear.silver.focus();
	   return false;
   }
 }
 if (sear.glod2.valus != "")
 {
   if (isNaN(sear.glod2.value))
   {
	  alert("glod muse a number");
	  sear.glod2.focus();
	  return false;
   }
   if (isNaN(sear.glod.value))
   {
	  alert("glod muse a number");
	  sear.glod.focus();
	  return false;
   }
   if (parseInt(sear.glod2.value,10) < parseInt(sear.glod.value,10))
   {
	   alert("end must More than start");
	   sear.glod.focus();
	   return false;
   }
 }
}
function notMember()
{
	alert("Sorry,You are not a member or has not landed!");
	window.location.href="member.php";	
	return false;
}