Custom code variables is not triggerring along with pagetag rule.

i could not see my custom code not triggerring used along with pagetag variables set in template.

s.usePlugins = true;

s.doPlugins = function(s)
{
/* Desired code */
s.eVar2 = getPreviousValue(s.pageName,"gpv_Page");
s.campaign = getQueryParam('cid');
s.prop2= "fired";
}
//doplugins()
/* Plugin Section - Add plugin code here*/
/* Adobe Consulting Plugin: getPreviousValue v3.0 */
function getPreviousValue(v,c){var k=v,d=c;if("-v"===k)return{plugin:"getPreviousValue",version:"3.0"};var a=function(){if("undefined"!==typeof window.s_c_il)for(var c=0,b;c<window.s_c_il.length;c++)if(b=window.s_c_il[c],b._c&&"s_c"===b._c)return b}();"undefined"!==typeof a&&(a.contextData.getPreviousValue="3.0");window.cookieWrite=window.cookieWrite||function(c,b,f){if("string"===typeof c){var h=window.location.hostname,a=window.location.hostname.split(".").length-1;if(h&&!/^[0-9.]+$/.test(h)){a=2<a?a:2;var e=h.lastIndexOf(".");if(0<=e){for(;0<=e&&1<a;)e=h.lastIndexOf(".",e-1),a--;e=0<e?h.substring(e):h}}g=e;b="undefined"!==typeof b?""+b:"";if(f||""===b)if(""===b&&(f=-60),"number"===typeof f){var d=new Date;d.setTime(d.getTime()+6E4*f)}else d=f;return c&&(document.cookie=encodeURIComponent(c)+"="+encodeURIComponent(b)+"; path=/;"+(f?" expires="+d.toUTCString()+";":"")+(g?" domain="+g+";":""),"undefined"!==typeof cookieRead)?cookieRead(c)===b:!1}};window.cookieRead=window.cookieRead||function(c){if("string"===typeof c)c=encodeURIComponent(c);else return"";var b=" "+document.cookie,a=b.indexOf(" "+c+"="),d=0>a?a:b.indexOf(";",a);return(c=0>a?"":decodeURIComponent(b.substring(a+2+c.length,0>d?b.length:d)))?c:""};var l;d=d||"s_gpv";a=new Date;a.setTime(a.getTime()+18E5);window.cookieRead(d)&&(l=window.cookieRead(d));k?window.cookieWrite(d,k,a):window.cookieWrite(d,l,a);return l};
/******************************************** END CODE TO DEPLOY ********************************************/
/******************************************* BEGIN CODE TO DEPLOY *******************************************/
/* Adobe Consulting Plugin: getQueryParam v4.0.1 */
function getQueryParam(a,d,f){function n(g,c){c=c.split("?").join("&");c=c.split("#").join("&");var e=c.indexOf("&");if(g&&(-1<e||c.indexOf("=")>e)){e=c.substring(e+1);e=e.split("&");for(var h=0,p=e.length;h<p;h++){var l=e[h].split("="),q=l[1];if(l[0].toLowerCase()===g.toLowerCase())return decodeURIComponent(q||!0)}}return""}if("-v"===a)return{plugin:"getQueryParam",version:"4.0.1"};var b=function(){if("undefined"!==typeof window.s_c_il)for(var g=0,c;g<window.s_c_il.length;g++)if(c=window.s_c_il[g],c._c&&"s_c"===c._c)return c}();"undefined"!==typeof b&&(b.contextData.getQueryParam="4.0");if(a){d=d||"";f=(f||"undefined"!==typeof b&&b.pageURL||location.href)+"";(4<d.length||-1<d.indexOf("="))&&f&&4>f.length&&(b=d,d=f,f=b);b="";for(var m=a.split(","),r=m.length,k=0;k<r;k++)a=n(m[k],f),"string"===typeof a?(a=-1<a.indexOf("#")?a.substring(0,a.indexOf("#")):a,b+=b?d+a:a):b=""===b?a:b+(d+a);return b}};
/******************************************** END CODE TO DEPLOY ********************************************/