var pagesize = 30; // 页大小(每页记录数)
var count = 0; // 页数统计
var recordcount = 0;
var thispage = 1;

var gopage = function() {
};

function gotopage(par) {
	switch (par) {
		case 'frist' :
			thispage = 1;
			gopage();
			break;
		case 'uppage' :
			thispage--;
			gopage();
			break;
		case 'downpage' :
			thispage++;
			gopage();
			break;
		case 'lastpage' :
			thispage = count;
			gopage();
			break;

	}

};

function initPage() {
	getE("pagecount").innerHTML = count;
	getE("recordcount").innerHTML = recordcount;
}

function showBotton() {
	$("#pagebtn").show();
	getE("currpage").innerHTML = thispage;
	var obj = "";
	switch (thispage) {
		case 1 :

			obj = getE("firstbtn");
			if (obj) {
				removeAttribute(obj, "disabledbtn");
				addAttribute(obj, "disabledbtn");
				obj.onclick = function() {
					return false;
				};
			}
			obj = getE("prebtn");
			if (obj) {
				removeAttribute(obj, "disabledbtn");
				addAttribute(obj, "disabledbtn");
				obj.onclick = function() {
					return false;
				};
			}
			if (count > 1) {
				obj = getE("nextbtn");
				if (obj) {
					removeAttribute(obj, "disabledbtn");
					obj.onclick = function() {
						gotopage('downpage')
					};
				}
				obj = getE("lastbtn");
				if (obj) {
					removeAttribute(obj, "disabledbtn");
					obj.onclick = function() {
						gotopage('lastpage')
					};
				}
			} else {
				obj = getE("nextbtn");
				if (obj) {
					removeAttribute(obj, "disabledbtn");
					addAttribute(obj, "disabledbtn");
					obj.onclick = function() {
						return false;
					};
				}
				obj = getE("lastbtn");
				if (obj) {
					removeAttribute(obj, "disabledbtn");
					addAttribute(obj, "disabledbtn");
					obj.onclick = function() {
						return false;
					};
				}
			}

			break;

		case count :

			obj = getE("firstbtn");
			if (obj) {
				removeAttribute(obj, "disabledbtn");
				obj.onclick = function() {
					gotopage('frist')
				};
			}
			obj = getE("prebtn");
			if (obj) {
				removeAttribute(obj, "disabledbtn");
				obj.onclick = function() {
					gotopage('uppage');
				};
			}
			obj = getE("nextbtn");
			if (obj) {
				removeAttribute(obj, "disabledbtn");
				addAttribute(obj, "disabledbtn");
				obj.onclick = function() {
					return false;
				};
			}
			obj = getE("lastbtn");
			if (obj) {
				removeAttribute(obj, "disabledbtn");
				addAttribute(obj, "disabledbtn");
				obj.onclick = function() {
					return false;
				};
			}
			break;
		default :
			obj = getE("firstbtn");
			if (obj) {
				removeAttribute(obj, "disabledbtn");
				obj.onclick = function() {
					gotopage('frist')
				};
			}
			obj = getE("prebtn");
			if (obj) {
				removeAttribute(obj, "disabledbtn");
				obj.onclick = function() {
					gotopage('uppage');
				};
			}

			obj = getE("nextbtn");
			if (obj) {
				removeAttribute(obj, "disabledbtn");
				obj.onclick = function() {
					gotopage('downpage')
				};
			}
			obj = getE("lastbtn");
			if (obj) {
				removeAttribute(obj, "disabledbtn");
				obj.onclick = function() {
					gotopage('lastpage')
				};
			}
			break;
	}
}