function getWindowHeight() {
    return document.getElementById('wolfsafety_css').clientHeight;
}
function getHeaderHeight() {

    /* mozilla browsers */
    var offset = 26;

    /* test for ie */
    if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)){ //test for MSIE x.x;

        var ieversion=new Number(RegExp.$1) // capture x.x portion and store as a number

        var header = document.getElementById('header-wrap').offsetHeight;

            if (ieversion>=8) {
            }
            else if (ieversion>=7) {
            }
            else if (ieversion>=6) {
            }
            else if (ieversion>=5) {
            }

    } else {
        var header = document.getElementById('header-wrap').clientHeight;
    }

    /* return what we need */
    return header + offset;
}
function setColumnLengths() {

    var minHeight = getWindowHeight() - getHeaderHeight();

	if (document.getElementById) {
    
			var MiddleObject = document.getElementById('content-middle');
            /* default the longest column to be middle */
            var contentHeight = MiddleObject.offsetHeight;

			var LeftObject = document.getElementById('content-left');
			var RightObject = document.getElementById('content-right');

            /* locate the longest column */
			if((LeftObject.offsetHeight > RightObject.offsetHeight) && (LeftObject.offsetHeight > contentHeight)) {
                /* if left is longer than the others */
			    contentHeight = LeftObject.offsetHeight;
			} else if ((RightObject.offsetHeight > LeftObject.offsetHeight) && (RightObject.offsetHeight > contentHeight)) {
			    contentHeight = RightObject.offsetHeight;
			}

            if(contentHeight < minHeight) {
                contentHeight = minHeight;
            }

            /* set all three columns to the same height */
            LeftObject.style.height = contentHeight + 'px';
            RightObject.style.height = contentHeight + 'px';
            MiddleObject.style.height = contentHeight + 'px';
            document.getElementById('footer-underbar').style.visibility = 'visible';

    }
}
function setHeaderImg(imgName) {
    document.getElementById('header-div').style.background = 'transparent url(/uploads/images/headers/' + imgName + ') 519px 0px no-repeat';
}
window.onload = function() {
    setColumnLengths();
    setHeaderImg(imgName);
}