function reveal(item){
    e=document.getElementById(item);
    e.style.display='block';
    if(item=='try_bni_form'){
        document.try_bni_frm.contact_name.focus();
    }
    return;
}

function hide(item){
    e=document.getElementById(item);
    e.style.display='none';
    return;
}

function alertSize(mode) {
    var myWidth = 0, myHeight = 0;
    if( typeof( window.innerWidth ) == 'number' ) {
        //Non-IE
        myWidth = window.innerWidth;
        myHeight = window.innerHeight;
    } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
        //IE 6+ in 'standards compliant mode'
        myWidth = document.documentElement.clientWidth;
        myHeight = document.documentElement.clientHeight;
    } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
        //IE 4 compatible
        myWidth = document.body.clientWidth;
        myHeight = document.body.clientHeight;
    }
    if(mode=="width"){
        return myWidth;
    } else {
        return myHeight;
    }
}