function changePage(p){
  var loca=window.location.toString();
  if(loca.indexOf('?') != -1){
    var temp = loca.substr(loca.indexOf('?')+1, loca.length);
	var ar,ar_2;
	var loca_2='';
	ar=temp.split('&');
	for(var i=0; i<ar.length; i++){
	  ar_2 = ar[i].split('=');
	  if(ar_2[0] != 'page'){
	    loca_2 += ar[i]+'&';
	  }
	}
	loca_2 += 'page='+p;
	loca = loca.substr(0,loca.indexOf('?'))+'?'+loca_2
  }else{
    loca = loca+'?page='+p;
  }
  location.href = loca;
}