function showDiv(pass) {
	
	var idchange = 0;
	
	var divs=new Array("phil","karl","craig","cv1","sumit","alex","gary","sheena","cv2","simon","lindsay","tracey","pamela");
	for(i=0;i<divs.length;i++){
		idchange = divs[i];	
		document.getElementById(idchange).style.visibility = "hidden";
	
	}
	document.getElementById(pass).style.visibility = "visible";	 
}