I have now put this in the javascript which works:
if (LR.getParam("GetUserName", "Administrator")) { //window.alert("username is: " + LR.getParam("GetUserName")); document.cookie = 'JSESSIONID=167362CA3DCCB8898DE275FCE1DC4B24; path=/; domain=192.168.150.129' document.cookie = 'iw_user=Administrator; path=/; domain=192.168.150.129' document.cookie = 'iw_domain=WIN8KTS732; path=/; domain=192.168.150.129' document.cookie = 'IWAUTH=52616e646f6d49561e14f912701a744e798d9e21f64719cb3836a94daebf891c5e4c2e81704c70fa541e573c34d0f48ab7c46a157d45f51b30281a34b3a5dcb32610883742608ce4; path=/; domain=192.168.150.129' } else if (LR.getParam("GetUserName", "contributor")) { //window.alert("username is: " + LR.getParam("GetUserName")); document.cookie = 'JSESSIONID=167362CA3DCCB8898DE275FCE1DC4B24; path=/; domain=192.168.150.129' document.cookie = 'iw_user=contributor; path=/; domain=192.168.150.129' document.cookie = 'iw_domain=WIN8KTS732; path=/; domain=192.168.150.129' document.cookie = 'IWAUTH=52616e646f6d49561e14f912701a744ee287f540dd4e85ee124dfc4cbe8abb8219434127cf3ec0021f057867ea6973150f15047088c77d5d3d662599facfd7fd40c630a4a8b40091; path=/; domain=192.168.150.129' } else if (LR.getParam("GetUserName", "translator")) { //window.alert("username is: " + LR.getParam("GetUserName")); document.cookie = 'JSESSIONID=167362CA3DCCB8898DE275FCE1DC4B24; path=/; domain=192.168.150.129' document.cookie = 'iw_user=translator; path=/; domain=192.168.150.129' document.cookie = 'iw_domain=WIN8KTS732; path=/; domain=192.168.150.129' document.cookie = 'IWAUTH=52616e646f6d49561e14f912701a744ea9bb5bf04d1d53bb33fe212ce85e48f519af766107d01f60bc07db86572cfe169d9db85c89868505d02bdf1336be4afae7eb0bbdc3584ee5; path=/; domain=192.168.150.129' } else if (LR.getParam("GetUserName", "validator")) { //window.alert("username is: " + LR.getParam("GetUserName")); document.cookie = 'JSESSIONID=167362CA3DCCB8898DE275FCE1DC4B24; path=/; domain=192.168.150.129' document.cookie = 'iw_user=validator; path=/; domain=192.168.150.129' document.cookie = 'iw_domain=WIN8KTS732; path=/; domain=192.168.150.129' document.cookie = 'IWAUTH=52616e646f6d49561e14f912701a744e5f355457bb4cc22396b96b6b6a455cf84f75371d8a9dc096fa644e1c68b2d799d0da7be32774ef45b8483a22f211739be9085705f9e7a16f; path=/; domain=192.168.150.129' } else if (LR.getParam("GetUserName", "publisher")) { //window.alert("username is: " + LR.getParam("GetUserName")); document.cookie = 'JSESSIONID=167362CA3DCCB8898DE275FCE1DC4B24; path=/; domain=192.168.150.129' document.cookie = 'iw_user=publisher; path=/; domain=192.168.150.129' document.cookie = 'iw_domain=WIN8KTS732; path=/; domain=192.168.150.129' document.cookie = 'IWAUTH=52616e646f6d49561e14f912701a744e6198f34689088d45ae902d2640ce04db8337b3a60927b544f8b0e24be59f8ade45331884db591608503ef342d96d03e23836c014234d0c5c; path=/; domain=192.168.150.129'
} else { window.alert("nothing to do"); }
window.setTimeout(function(){}, 1000);
//window.alert("IWAUTH is: " + getCookie("IWAUTH"));
function getCookie(cname) { var name = cname + "="; var ca = document.cookie.split(';'); for(var i=0; i<ca.length; i++) { var c = ca[i].trim(); if (c.indexOf(name)==0) return c.substring(name.length,c.length); } return ""; }