function changePageNum(){
		var url=location.href;
		if(url.indexOf("&cursorpage=")!=-1){
			url=url.substring(0,url.indexOf("&cursorpage="));
		}
		var cp=document.getElementById("fengye");
		location.href=url+'&cursorpage='+cp.options[cp.options.selectedIndex].value;
	}
	
	function changePage(cp){
		var url=location.href;
		if(url.indexOf("&cursorpage=")!=-1){
			url=url.substring(0,url.indexOf("&cursorpage="));
		}
		location.href=url+'&cursorpage='+cp;
	}