function randomQuote(){
	quotes = new Array();
	authors = new Array();
	/**************************************************/
	
	//Quotes Array
	quotes[0] = 
	"What lies behind us and what lies before us are tiny matters compared to what lies within us";
	quotes[1]=
	"Nerds don't just happen to dress informally. They do it too consistently. <br/>Consciously or not, they dress informally as a prophylactic measure against stupidity.";
	quotes[2]=
	"Education is what remains after one has forgotten everything he learned in school.";
	quotes[3]=
	"In theory, there is no difference between theory and practice. But in practice, there is."
	
	//Authors Array
	authors[0] = "Ralph Waldo Emerson";
	authors[1] = "Paul Grahaum"; 
	authors[2] = "Albert Einstein (1879-1955)";
	authors[3] = "Yogi Berra"
	
	/**************************************************/
	//calculate a random index
	if(quotes.length == authors.length)
		var index = Math.floor(Math.random() * quotes.length);
	
	//display the quotation
	
	document.write(quotes[index] + "<br/>");
	document.write("-- " + authors[index]);
}

function randomBackgroundImage(){

var index = Math.floor(Math.random() * 9) + 1;
document.getElementById("header-wrapper").style.backgroundImage="url(img/index" + index + ".jpg)";

}