Only one selected checkbox

Question

I have 15 check boxes in a form. This checkboxes are independent to eachother. I want a javascript function that makes, when user is selecting 2 checkboxes, the first checke

Answer 1

Can check like this:

At javascript:

function call(no, value) {
    if(no== 0){
        document.frmMTR.check2.checked = false
        document.frmMTR.check3.checked = false;     
    }
    else if(no== 1){
        document.frmMTR.check1.checked = false
        document.frmMTR.check3.checked = false; 
    }
    else if(no== 2){
        document.frmMTR.check1.checked = false
        document.frmMTR.check2.checked = false; 
    }
}

At html: