function layoutColumns() {
    if (document.getElementById){
      var newHeight = document.getElementById('contentCol').offsetHeight;
      var newHeight = newHeight - 0;

      if (newHeight < 450){
        newHeight = 450;
      }

      leftNewHeight = newHeight + 5;

      document.getElementById('leftCol').style.height=leftNewHeight+"px";
      document.getElementById('contentCol').style.height=newHeight+"px";

      var headerHeight = document.getElementById('header').offsetHeight;
      var footerHeight = document.getElementById('footer').offsetHeight;

      wrapperHeight = headerHeight + newHeight + footerHeight + 5;

      document.getElementById('wrapper').style.height=wrapperHeight+"px";

    }
  }


function externalLinks() {
    if (!document.getElementsByTagName) return;
    var anchors = document.getElementsByTagName("a");
    for (var i=0; i<anchors.length; i++) {
      var anchor = anchors[i];
      if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") anchor.target = "_blank";
    }
  }

window.onload = externalLinks;


var newWindow = null;

function closeWin(){
    if (newWindow != null){
      if(!newWindow.closed)
      newWindow.close();
    }
  }

function popUpWin(url, type, strWidth, strHeight){
    closeWin();
    if (type == "fullScreen"){
      strWidth = screen.availWidth - 10;
      strHeight = screen.availHeight - 160;
    }

    var tools="";
    if (type == "standard" || type == "fullScreen") tools = "resizable,toolbar=no,location=no,scrollbars=yes,menubar=yes,width="+strWidth+",height="+strHeight+",top=0,left=0";
    if (type == "console") tools = "resizable,toolbar=no,location=no,scrollbars=no,width="+strWidth+",height="+strHeight+",left=0,top=0";
    newWindow = window.open(url, 'newWin', tools);
    newWindow.focus();
  }

sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);