function querySt(paramName){ 
  			pageUrl = window.location.search.substring(1);
  			params = pageUrl.split("&");
  			var paramVal = [];
  			for (i=0;i<params.length;i++){
   				paramPair= params[i].split("=");
   				if(paramPair[0] == paramName){
    				paramVal.push(paramPair[1]);
   					}
  				}
  				return paramVal;
			}