//当换类别时使用
function getarea(num)
{
	var objXMLHTTP=new ActiveXObject("MICROSOFT.XMLHTTP"); 
	objXMLHTTP.open("GET","getarea.asp?num=" + num,false); 
	objXMLHTTP.send(""); 
	var strReturn=objXMLHTTP.ResponseText;
	BuildSel(unescape(strReturn));
  }
	function SetString(str,len)
{
 var strlen = 0; 
 var s = "";
for(var i = 0;i < str.length;i++)
{
        if(str.charCodeAt(i) > 128)
         strlen += 2;
        else 
        strlen++;
        s += str.charAt(i);
        if(strlen >= len) 
        return s + "...";
}
return s;
}
function BuildSel(str)
{
//先清空原来的数据.
document.all.area.options.length=0;
var arrstr = new Array();
arrstr = str.split("|||");
//开始构建新的Select.

for(var i=0;i<arrstr.length;i++)
{
var arrstrx = new Array();
arrstrx = arrstr[i].split("||");
document.all.area.options[document.all.area.options.length]=new Option(arrstrx[1],arrstrx[0]+'|'+arrstrx[1]);
arrstrx="";
}
}

function getkinds(num)
{
	var objXMLHTTP=new ActiveXObject("MICROSOFT.XMLHTTP"); 
	objXMLHTTP.open("GET","getkinds.asp?num=" + num,false); 
	objXMLHTTP.send(""); 
	var strReturn=objXMLHTTP.ResponseText;
	BuildSel2(unescape(strReturn));
  }
	
function BuildSel2(str)
{
//先清空原来的数据.
document.all.kinds.options.length=0;
var arrstr = new Array();
arrstr = str.split("|||");
//开始构建新的Select.

for(var i=0;i<arrstr.length;i++)
{
var arrstrx = new Array();
arrstrx = arrstr[i].split("||");
document.all.kinds.options[document.all.kinds.options.length]=new Option(arrstrx[1],arrstrx[0]+'|'+arrstrx[1]);
arrstrx="";
}
}

function check1()
{
if(document.all.province.value=="")
{
alert('请选择省份');
return false;
}
if(document.all.area.value=="")
{
alert('请选择市场');
return false;
}
}
function check2()
{
if(document.all.category.value=="")
{
alert('请选择类别');
return false;
}
if(document.all.kinds.value=="")
{
alert('请选择品种');
return false;
}
}