var xmlHttp;
function createXMLHttpRequest(){
	if(window.ActiveXObject){
		xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		xmlHttp = new XMLHttpRequest;
	}
}
function $(id) {
	return document.getElementById(id);
}
//useful
function checkall(name) {
	var e = is_ie ? event : checkall.caller.arguments[0];
	obj = is_ie ? e.srcElement : e.target;
	var arr = document.getElementsByName(name);
	var k = arr.length;
	for(var i=0; i<k; i++) {
		arr[i].checked = obj.checked;
	}
}
//useful
function SelectAll(obj) {
	var sid = document.getElementsByName("delete[]");
	if ( obj.value == "全选" ) {
		obj.value = "反选";
		Select( sid , true );
	} else {
		obj.value = "全选";
		Select( sid , false );
	}
}
function Select( obj , check ) {
	for ( i = 0 ; i < obj.length ; i++ ) {
		obj[i].checked = check;
	}
	return;
}
//useful
function Delete( url ) {
	var sid = document.getElementsByName("id[]");
	var id = "";
	var is_select = false;
	for ( i = 0 ; i < sid.length ; i++ ) {
		if ( sid[i].checked == true ) {
			id += "," + sid[i].value;
			is_select = true;
		} else {

		}
	}
	if ( is_select ) {
		if ( confirm("该操作将不可逆！\n您确定要执行该操作吗？")) {
			window.location = url + "?id=" + id;


		} else {
			return false;
		}
	} else {
		alert( "请至少选择一个条目，才能进行操作" );
		return false;
	}
}
function getposition(obj) {
	var r = new Array();
	r['x'] = obj.offsetLeft;
	r['y'] = obj.offsetTop;
	while(obj = obj.offsetParent) {
		r['x'] += obj.offsetLeft;
		r['y'] += obj.offsetTop;
	}
	return r;
}
//useful
function addMouseEvent(obj){
	var checkbox,atr,ath,i;
	atr=obj.getElementsByTagName("tr");
	for(i=0;i<atr.length;i++){
		atr[i].onclick=function(){
			ath=this.getElementsByTagName("th");
			checkbox=this.getElementsByTagName("input")[0];
			if(!ath.length && checkbox.getAttribute("type")=="checkbox"){
				if(this.className!="currenttr"){
					this.className="currenttr";
					checkbox.checked=true;
				}else{
					this.className="";
					checkbox.checked=false;
				}
			}
		}
	}
}
function showDiv(sf,max,menu,div) {

    for(var i=1;i<=max;i++){
        if(i==sf){
            document.getElementById(menu+i).className="curr";
            document.getElementById(div+i).style.display="";
        }else{
            document.getElementById(menu+i).className="";
            document.getElementById(div+i).style.display="none";
        }
    }
}
function getResult(){
	//createXMLHttpRequest();
	var base = parseInt($('baseprice').innerHTML);
	var raise = parseInt($('raise').innerHTML);
	var multiply = parseInt($('multiply').value);
	var result = base+raise*multiply;
	$('result').value=result;
}