function headupdate(x) {
    c=-1;
    for(counter=0; counter<=document.shoppingform.head.length-1; counter++){
        if(document.shoppingform.head.options[counter].value==x) c=counter;
    }
    if(c<0) return false;
    document.shoppingform.head.selectedIndex=c;
    previewit('head');
    return true;
}

function skirtupdate(x) {
    c=-1;
    for(counter=0; counter<=document.shoppingform.skirt.length-1; counter++){
        if(document.shoppingform.skirt.options[counter].value==x) c=counter;
    }
    if(c<0) return false;
    document.shoppingform.skirt.selectedIndex=c;
    return true;
}

function previewit(arg) {
    src=document.shoppingform[arg].options[document.shoppingform[arg].selectedIndex].value;
    rollover(0,'preview',"./items/previews/"+src+".jpg");
}