function setRandom(howMany) {
 return Math.floor(Math.random() * howMany);
}
 
var rans = new Array();
 
function getRandom(howMany) {
 var ranNum = setRandom(howMany);
 
 for (var i = 0; i < rans.length; i++) { 
  if (ranNum == rans[i]) {
   ranNum = 0;
   break;
  }
 }
 
 return ranNum;
}
 
function setSponsors(lCode) {
	var my_imgs = new Array();
	var my_imgs_link = new Array();
	var my_imgs_alt = new Array();
	var my_imgs_desc = new Array();
	var t = new Date();
	
	/* Set image URLs */
	my_imgs[0] = "";
	my_imgs[1] = "http://www.autofieldguide.com/advertisers/mitutoyo/images/mitutoyo_large.gif";
	my_imgs[2] = "http://www.autofieldguide.com/Advertisers/VOGELSAN/images/Vogel_large.gif";
	my_imgs[3] = "http://www.autofieldguide.com/Advertisers/fev/images/fev_large.GIF";
	my_imgs[4] = "http://www.autofieldguide.com/Advertisers/basf/images/basf_large.jpg";
	my_imgs[5] = "http://www.autofieldguide.com/advertisers/sandvik/images/sandvikIMTS2010.jpg";
	my_imgs[6] = "http://www.autofieldguide.com/advertisers/trw/images/trw160x65.gif";
	my_imgs[7] = "http://www.autofieldguide.com/advertisers/leighf/images/Leigh_banner-A2.jpg";
	my_imgs[8] = "http://ad.doubleclick.net/ad/N5248.125529.6893655627521/B4003202.3;sz=165x65;ord=" + t.valueOf() + "?";
	
	/* Set image link URLs */
	my_imgs_link[0] = "";
	my_imgs_link[1] = "/dp/redir.cfm?CompanyName=MITUTOYO&amp;LCODE=";
	my_imgs_link[2] = "/dp/redir.cfm?CompanyName=VOGELSAN&amp;LCODE=";
	my_imgs_link[3] = "/dp/redir.cfm?CompanyName=FEV&amp;LCODE=";
	my_imgs_link[4] = "/dp/redir.cfm?item=BAN1&companyname=BASF&LCODE=";
	my_imgs_link[5] = "http://www.myyellowcoat.com/events-and-training/imts-2010/?utm_campaign=imts2010&utm_source=autofieldguide&utm_medium=display&utm_content=general-banner-160x60";
	my_imgs_link[6] = "/dp/redir.cfm?CompanyName=TRW&amp;LCODE=";
	my_imgs_link[7] = "/dp/redir.cfm?item=BAN2&CompanyName=LEIGHF&amp;LCODE=";
	my_imgs_link[8] = "http://ad.doubleclick.net/jump/N5248.125529.6893655627521/B4003202.3;sz=165x65;ord=" + t.valueOf() + "?";
	
	/* Set image alternate text */
	my_imgs_alt[0] = "";
	my_imgs_alt[1] = "Mitutoyo";
	my_imgs_alt[2] = "Wrapped Solutions";
	my_imgs_alt[3] = "FEV";
	my_imgs_alt[4] = "BASF";
	my_imgs_alt[5] = "Sandvik";
	my_imgs_alt[6] = "TRW";
	my_imgs_alt[7] = "Leigh Fibers";
	my_imgs_alt[8] = "DMS";
	
	if (document.getElementById && document.createTextNode) {
	 while (rans.length < 4) {
	  ranNum = getRandom(my_imgs.length);
	  if (ranNum != 0) {
	   rans[rans.length] = ranNum;
	  }
	 }
	 
	 for (var r = 0; r < rans.length; r++) {
	  var imgDiv = "my_banners" + (r + 1);
	  var ran_num = rans[r];
	  var linker = my_imgs_link[ran_num];
	  if (linker.indexOf("]?") < 0) {
	  	linker += lCode;
	  }
	  var the_HTML = "<a href=\"" + linker + "\">";
	  the_HTML += "<img src=\"" + my_imgs[ran_num] + "\" class=\"banner_imgs\" border=\"0\" ";
	  the_HTML += "title=\"" + my_imgs_alt[ran_num] + "\" /></a>";
	  document.getElementById(imgDiv).innerHTML = the_HTML;
	  
	  
	 }
	}
}