$(document).ready(function() {
	
	// Tabs rollover
	//----------------------
	$("#blogTab a img").hover(
	function() {
		this.src = this.src.replace("_off","_on");
	},
	function() {
		this.src = this.src.replace("_on","_off");
	});
});


var viewportwidth;
var viewportheight;

// the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight

if (typeof window.innerWidth != 'undefined')
{
     viewportwidth = window.innerWidth,
     viewportheight = window.innerHeight
}

// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)

else if (typeof document.documentElement != 'undefined'
    && typeof document.documentElement.clientWidth !=
    'undefined' && document.documentElement.clientWidth != 0)
{
      viewportwidth = document.documentElement.clientWidth,
      viewportheight = document.documentElement.clientHeight
}

// older versions of IE

else
{
      viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
      viewportheight = document.getElementsByTagName('body')[0].clientHeight
}
//-->

viewportheight -= 140;

if (viewportheight < 600) {
	viewportheight = 600;
}