function CheckForm(oForm)
{
    var els = oForm.elements;

    for(var i=0;i<els.length;i++)
    {

        if(els[i].check)
        {

            var sReg = els[i].check;

            var sVal = GetValue(els[i]);

            var reg = new RegExp(sReg,"i");
            if(!reg.test(sVal))
            {

                alert(els[i].warning);

                GoBack(els[i])  
                return false;
            }
        }
    }
}


function GetValue(el)
{
    var sType = el.type;
    switch(sType)
    {
        case "text":
        case "hidden":
        case "password":
        case "file":
        case "textarea": return el.value;
        case "checkbox":
        case "radio": return GetValueChoose(el);
        case "select-one":
        case "select-multiple": return GetValueSel(el);
    }

    function GetValueChoose(el)
    {
        var sValue = "";

        var tmpels = document.getElementsByName(el.name);
        for(var i=0;i<tmpels.length;i++)
        {
            if(tmpels[i].checked)
            {
                sValue += "0";
            }
        }
        return sValue;
    }

    function GetValueSel(el)
    {
        var sValue = "";
        for(var i=0;i<el.options.length;i++)
        {

            if(el.options[i].selected && el.options[i].value!="")
            {
                sValue += "0";
            }
        }
        return sValue;
    }
}

function GoBack(el)
{

    var sType = el.type;
    switch(sType)
    {
        case "text":
        case "hidden":
        case "password":
        case "file":
        case "textarea": el.focus();var rng = el.createTextRange(); rng.collapse(false); rng.select();
        case "checkbox":
        case "radio": var els = document.getElementsByName(el.name);els[0].focus();
        case "select-one":
        case "select-multiple":el.focus();
    }
}