var threadNoCheck = $('#replies tr div a').contains('First post')[0].href;

var tN;

if(threadNoCheck.indexOf('#') > -1) {

	if (threadNoCheck.indexOf('&') > -1){
	
		tN = threadNoCheck.slice(threadNoCheck.indexOf('t=')+2, threadNoCheck.indexOf('&'));

	}
	else {
	
		tN = threadNoCheck.slice(threadNoCheck.indexOf('t=')+2, threadNoCheck.indexOf('#'));
	
	}	

}
else{

	tN = threadNoCheck.split('t=')[1];

}