select value in a combobox when i check checkbox

[Jaydeep]

hello friends i am having problem here.

when i click a check box i need to display data in a text box and one item should be selected in the combobox. i am using this script in php..
and ckman1.value is a string not a integer so how can i select a value in a combobox called man1..
here javascript for txtballname1 is working but for man1 itis not working...

<script language="javascript">

function setball()
{
var Lform2 = this.document.advbbsearch2;
var Lform1= this.document.advbbsearch1;
Lform2.txtballname1.value = Lform1.ckb1.value;
Lform2.man1.selectedindex = Lform1.ckman1.value;
return true;
}
</script>

*********************************************
echo "<input type=\"hidden\" value=\"".$ballname1."\" name=\"ckb1\"";
echo "<input type=\"hidden\" value=\"".$manu1."\" name=\"ckman1\"";
*********************************************
echo "<input type=\"checkbox\" name=\"chkbox1\" value=\"ball1\" onclick=\" return setball()\" align=\"right\">";


so please help me .......

Jaydeep Vadher....

[Kor]

var opt = Lform2.man1.options;
for(var i=0;i<opt;i++){
opt[i].selected=(Lform1.ckman1.value==opt[i].value)?true:false;
}
--------reedit--------

[phpnovice]

Presuming that you've got FORM tags somewhere, change this part of your PHP code:

onclick=\" return setball()\"

to this:

onclick=\"return setball(this)\"

Then, change your function to this:

function setball(chkbox)
{
    var Lform1= document.forms["advbbsearch1"];
    var Lform2 = document.forms["advbbsearch2"];
    Lform2.txtballname1.value = Lform1.ckb1.value;
    if(chkbox.checked) {
        var opt = Lform2.man1.options;
        var x, len = opt.length;
        for(x=0; x<len; ++x)
        {
            if(opt[x].value == Lform1.ckman1.value)
            {
                opt[x].selected = true;
                break;
            }
        }
    }
    return true;
}

[Jaydeep]

thanks for reply I worked as you told but still it is not working...
so can you send me another solution please...

[phpnovice]

I can't provide anything else without any information as to just what is the problem. So, you provide a live link to your page on the Internet so I can see just what "is not working."