I create an IFrame dynamically and I cannot remove the scrollbars. I have tried this:

function Selection(toFieldPrimaryKey,tcUrl,toFieldValue,toFieldAdditionalKey)
{
   loIFrame=document.createElement("IFRAME")
   loIFrame.name="IFrameSelection"
   loIFrame.src=tcUrl
   loIFrame.setAttribute("frameBorder","0")
   loIFrame.setAttribute("scrolling","no")
   window.parent.document.body.appendChild(loIFrame)
}

...and this:

function Selection(toFieldPrimaryKey,tcUrl,toFieldValue,toFieldAdditionalKey)
{
   loIFrame=document.createElement("IFRAME")
   loIFrame.name="IFrameSelection"
   loIFrame.src=tcUrl
   loIFrame.setAttribute("frameBorder","0")
   loIFrame.setAttribute("horizontalscrolling","no")
   loIFrame.setAttribute("verticalscrolling","no")
   window.parent.document.body.appendChild(loIFrame)
}

Any idea if there is a way to adjust the scrollbars directly from a property instead of using setAttribute()?