function setHeaderImage() {
		
	// Create a random number between 0 and the total number of images	
	var baseNum = headerImage.length;
	var randomNum = (Math.floor(Math.random()*baseNum));
				
	//Swap default image with random image
	var finalHeader = document.getElementById("body-header-img");
	finalHeader.setAttribute("src", headerImage[randomNum]);
	
}


// DF1.1 :: domFunction 
// *****************************************************
// DOM scripting by brothercake -- http://www.brothercake.com/
// GNU Lesser General Public License -- http://www.gnu.org/licenses/lgpl.html
//******************************************************

function domFunction(f, a)
{
	var n = 0;
	var t = setInterval(function()
	{
		var c = true;
		n++;
		if(typeof document.getElementsByTagName != 'undefined' && (document.getElementsByTagName('body')[0] != null || document.body != null))
		{
			c = false;

			if(typeof a == 'object')
			{
				for(var i in a)
				{
					/*  */
					if(	(a[i] == 'id' && document.getElementById(i) == null)
						||
							(a[i] == 'tag' && document.getElementsByTagName(i).length < 1)
						|| 
							(a[i] == 'class' && !checkElementByTagClass(i.split('.')[0], i.split('.')[1]))
						) 
					{ 
						c = true; 
						break; 
					}
				}
			}
			/* if(!c) { alert('function = ' + f); } */
			if(!c) {f(); clearInterval(t); }
		}
		if(n >= 100)
		{
			clearInterval(t);
		}
	}, 250);
};

//Initializations
var initHeaderImage = new domFunction(function() {
		setHeaderImage();
	}, { 'body-header' : 'id' } );