function formText(control, defaultValue, action)
{
    if (action == 1)
    {
        if (control.value == defaultValue)
        {
            control.value = '';
        }
    }
    else
    {
        if (control.value == '')
        {
            control.value = defaultValue;
        }
    }
}

function setTopTabs(activeTab)
{
    var tab = document.getElementById(activeTab);
    if (tab)
    {
        tab.src = tab.src.replace('.jpg', '_on.jpg');
    }
}

function showAuto(dropDown, layerID)
{

    var control = document.getElementById(dropDown);
    var layer = document.getElementById(layerID);
    if (control && layer)
    {
        if (control.options[control.selectedIndex].text == 'Crédito Automóvel')
        {
            layer.style.display = 'block';
        }
        else
        {
            layer.style.display = 'none';
        }
    }

}

function popUp(url, name, wWidth, wHeight)
{
    var wTop = (screen.availHeight - wHeight) / 2
    var wLeft = (screen.availWidth - wWidth) / 2
    var vbvWindow = window.open(url, name, 'width=' + wWidth + ',height=' + wHeight + ',top=' + wTop + ',left=' + wLeft);
}

function setDropDown(ctrl, intervals)
{
    
    var ddl = document.getElementById(ctrl);
    if (ddl)
    {
        itemNumber = ddl.options.length;
        for (i = 0; i < itemNumber; i++)
        {
		    ddl.remove(0)
        }
        
        for (i = intervals[0]; i <= intervals[1]; i += intervals[2])
        {
            var optn = document.createElement("OPTION");
            optn.text = i;
            optn.value = i;
            ddl.options.add(optn);
        }
    }
}