urlinfo=window.location.href;
thislen=urlinfo.length;
offset=urlinfo.indexOf("?");
parainfo=urlinfo.substr(offset,thislen);
thiskv=parainfo.split("=");
thisid=thiskv[1];

if(thisid==null || thisid=="undefined"){
	id_start=document.cookie.indexOf("thisid=");
	if(id_start==-1){
		thisid="ABCD";				
	}
	else{
		id_start=id_start + 7;
		id_end=document.cookie.indexOf(";",id_start);
		if(id_end==-1){
			id_end=document.cookie.length;
		}		
		id_length=id_end-id_start;
		if(id_length>0){
			thisid=document.cookie.substr(id_start,id_end-id_start);
			if(thisid=="undefined"){
				thisid="ABCD";	
			}
		}
		else{
			thisid="ABCD";
		}		
	}
}

document.cookie="thisid="+thisid;