function GetOneToOneSize(product_size1,product_size2)
{
    var hidType=document.getElementById("hidProducType").value;
    if(hidType==1)
    {
        var xmlhttp = window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest(); 
        var myDate = new Date();
        //获取当前毫秒数(0-999)
        var url="../Getone2oneSize.aspx?product_size1=" + product_size1 + 
                "&product_size2=" + product_size2 + 
                "&Milli=" + myDate.getMilliseconds();

        xmlhttp.open("GET", url,true); 
        xmlhttp.onreadystatechange = function()
        { 
            if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
            { 
                var str=xmlhttp.responseText;
                document.getElementById("txt_product_size3").value=str;
            }
        } 
        xmlhttp.send(null); 
    }
}