//
//
// This file contains miscellaneous Dynamic HTML routines
// that takes into account different browsers and platforms
//
//


function getObj(obj)
{   if (dom1)
    {   compLayr = document.getElementById(obj).style
    }
    else if (is.nav4)
    {   compLayr = document.layers[obj]
    }
    else
    {   compLayr = document.all[obj].style
    }
    return compLayr
}

function show(layr)
{   obj = getObj(layr)
    obj.visibility = "visible"
}

function hide(layr)
{   obj = getObj(layr)
    obj.visibility = "hidden"
}

function setZindex(layr,num)
{   obj = getObj(layr)
    obj.zIndex = num
}

function setTop(layr,num)
{   obj = getObj(layr)
    obj.top = num
}

function setLeft(layr,num)
{   obj = getObj(layr)
    obj.left = num
}

function incTop(layr,num)
{   obj = getObj(layr)
    obj.top = getTop(layr) + num
}

function incLeft(layr,num)
{   obj = getObj(layr)
    obj.left = getLeft(layr) + num
}

function getTop(layr)
{   obj = getObj(layr)
    if (dom1)
    {   return (document.getElementById(layr).offsetTop)
    }
    else if (is.nav4)
    {   return (obj.top)
    }
    else
    {   return (obj.posTop)
    }
}

function getLeft(layr)
{   obj = getObj(layr)
    if (dom1)
    {   return (document.getElementById(layr).offsetLeft)
    }
    else if (is.nav4)
    {   return (obj.left)
    }
    else
    {   return (obj.posLeft)
    }
}

function getWidth(layr)
{   if ((dom1) && (!is.opera5up))
    {   return (document.getElementById(layr).offsetWidth)
    }
    else if (is.opera5up)
    {   return (document.getElementById(layr).style.pixelWidth)
    }
    else if (is.nav4)
    {   return eval("document." + layr + ".document.width")
    }
    else
    {   return (document.all[layr].scrollWidth)
    }
}

function getHeight(layr)
{   if ((dom1) && (!is.opera5up))
    {   return (document.getElementById(layr).offsetHeight)
    }
    else if (is.opera5up)
    {   return (document.getElementById(layr).style.pixelHeight)
    }
    else if (is.nav4)
    {   return eval("document." + layr + ".document.height")
    }
    else
    {   return (document.all[layr].scrollHeight)
    }
}

function layerClip(layr,topA,rightA,bottomA,leftA)
{   obj = getObj(layr)
    if (dom1 || (is.ie4 && !is.mac))
    {   obj.clip = "rect(" + topA + " " + rightA + " " + bottomA + " " + leftA + ")"
    }
    else if (is.nav4)
    {   obj.clip.top = topA
        obj.clip.left = leftA
        obj.clip.bottom = bottomA
        obj.clip.right = rightA
    }
    else if (is.ie4 && is.mac)
    {   obj.clip = "rect(0 100% 100% 0)"
    }
}

function browserWidth()
{   if (is.nav)
    {   return (window.innerWidth)
    }
    else
    {   return (document.body.clientWidth)
    }
}

function browserHeight()
{   if (is.nav)
    {   return (window.innerHeight)
    }
    else
    {   return (document.body.clientHeight)
    }
}