/**
* @author richard
* Resize iframes automatically according to content height (and, optionally,
* width)
*/

var _IFrameAutoSize_called = false;

//call with ?debug_iframe_size to get debugging info
var _IFrameAutoSize_debug = location.search.match(/[?&]debug_iframe_size($|[=?&])/);

function IFrameAutoSize(iframe_id, do_width_too)
{
	try {
	    var iframeDoc = document.getElementById(iframe_id).contentWindow.document;

	    //find the height of the internal page:  NS/GECKO || IE, Safari
	    var the_height = iframeDoc.height || iframeDoc.body.scrollHeight;
	    var the_width = iframeDoc.width || iframeDoc.body.scrollWidth;

	    var extra_height = parseInt(.014 * the_height);
		if (navigator.userAgent.indexOf("Firefox") != '-1') {
			extra_height += 30;
		}
	    var extra_width = parseInt(.01 * the_width);
	    //I have yet to find a way to get document height in safari that does
	    // not return the height of the containing iframe if it is greater than
	    // that of the document. So, for Safari, the extra height/width must
	    // only be applied once or the iframe will steadily grow!
	    if (navigator.userAgent.indexOf("Safari") > -1) {
	        if (_IFrameAutoSize_called) {
	            extra_height = 0;
	            extra_width = 0;
	        } else {
	            extra_height = 200;
	            extra_width = 0;
	        }
	    }
	    _IFrameAutoSize_debug && alert('width: ' + the_width + '+' + extra_width
	        + "\nheight: " + the_height + '+' + extra_height);
	    //need to adjust table width where it is at 100%
	    var elements = iframeDoc.getElementsByTagName('table');
	    for (var j = 0; j < elements.length; j++) {
	        if (elements[j] && elements[j].getAttribute('width') == '100%') {
	            elements[j].setAttribute('width', "96%");
	            if (navigator.userAgent.indexOf("Firefox") != '-1'){
	                elements[j].style.margin = "0 0";
	            }
	        }
	    }


	    if (do_width_too) {
			document.getElementById(iframe_id).width = the_width + extra_width;
		}
	    document.getElementById(iframe_id).height = the_height + extra_height;
	    //window.scrollTo(0,0);
		if (document.all) {
			document.getElementById(iframe_id).contentWindow.document.body.scroll = "no"; 
		} else {
			document.getElementById(iframe_id).setAttribute("scrolling", "no"); //.scrolling = "no";
		}
	} catch(err) {
	
	}
    _IFrameAutoSize_called = true;
}