problem using if statment in ajax function

[shivendravikramsingh]

hello friends,
actually i have a problem in using conditional statement in ajax function
i m tring to describe my problem properly,what i want when i select a value form a combo its vlue is passed to ajax function and according to the value,i want to visible a <div>.but when i use a if or any conditional statement in ajax function it not woks,and if i remove the conditional statment it works,means my code for div is write.so pls help me if anyone can.the code of ajax function is:

function show_cashtype_detail(text){
 
 
    var ajaxRequest;  // The variable that makes Ajax possible!
 
    try{
        // Opera 8.0+, Firefox, Safari
        ajaxRequest = new XMLHttpRequest();
    } catch (e){
        // Internet Explorer Browsers
        try{
            ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try{
                ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e){
                // Something went wrong
                alert("Your browser broke!");
                return false;
            }
        }
    }
 
    ajaxRequest.onreadystatechange = function(){
        if(ajaxRequest.readyState == 4){
             var  returncashval=ajaxRequest.responseText;
             alert(returncashval);    
 if(returncashval=="cash")
{            
document.forms['frm_voucher_entry'].type_cash.style.visibility='visible';
//document.frm_voucher_entry.type_cash.style.visibility='visible';
//document.getElementById('type_cash').style.visibility="visible";
 
}    //this code is not working    
 
 
 
 
        }
    }
    var username=text;
 
    var queryString = "?username=" + username;
 
    ajaxRequest.open("POST","http://localhost/sugarcub_erp/sugarcub_finance/voucher/html/cashtypeajax.php" + queryString, true);
      ajaxRequest.send(null); 
 
}

Please use code tags - moderator

[acoder]

For a POST request, you need to send the parameters using the send method. The parameters are sent in the URL in a GET request, not a POST one.