function iFrameHeight(){	

    //var docHeight = document.getElementsByTagName("BODY");    
    var docHeight = document.getElementById("divBoton");    
    var iFrameSup = parent.document.getElementsByTagName("IFRAME");
    var iCalc = findPosY(docHeight);
    if (iCalc == 0) iCalc = 2500;
    if (iFrameSup[0] != null) iFrameSup[0].height = iCalc + 30;

}

function findPosX(obj)
{
        var curleft = 0;
        if (obj.offsetParent)
        {
               while (obj.offsetParent)
               {
                       curleft += obj.offsetLeft
                       obj = obj.offsetParent;
               }
        }
        else if (obj.x)
               curleft += obj.x;
        return curleft;
}
 
function findPosY(obj)
{
        var curtop = 0;
        
        if(obj!=null)
        {
	        if (obj.offsetParent)
	        {
	               while (obj.offsetParent)
	               {
	                       curtop += obj.offsetTop
	                       obj = obj.offsetParent;
	               }
	        }
	        else if (obj.y){
	               curtop += obj.y;
	        }
        }
        return curtop;
}