function randomize() {

	var rand = randRange(1,3);

	var table1 = 'FrontPageImageHolder1';
	var table2 = 'FrontPageImageHolder2';
	var table3 = 'FrontPageImageHolder3';

	if(document.getElementById(table1) && document.getElementById(table2) && document.getElementById(table3)) {
	
		switch(rand) {
			case 1:
				document.getElementById(table1).style.display='';
				document.getElementById(table2).style.display='none';
				document.getElementById(table3).style.display='none';
			break;
	
			case 2:
				document.getElementById(table1).style.display='none';
				document.getElementById(table2).style.display='';
				document.getElementById(table3).style.display='none';
			break;
	
			case 3:
				document.getElementById(table1).style.display='none';
				document.getElementById(table2).style.display='none';
				document.getElementById(table3).style.display='';
			break;
			
		}
	}

	setTimeout("randomize()",5000);

}

function randRange(lowVal,highVal) {
     return Math.floor(Math.random()*(highVal-lowVal+1))+lowVal;
}