Beh, mettici 2 array:

var HazLink=new Array();
HazLink[0] = "link/to/page0.html";
HazLink[1] = "link/to/page1.html";
HazLink[2] = "link/to/page2.html";
HazLink[3] = "link/to/page3.html";

ed in fondo fai:

document.write(''+HazMess[HazMessNb]+'');