String.prototype.Trim = function(){
    return this.replace(/(^\s*)|(\s*$)/g, "");
}

function $(id){
	return document.getElementById(id);
}

function Validate(str, el){
	if (str == null || str == "" || el == null || el == "") { return false; }
	
	var expression = null;
	
	switch(el){
	    case "UserID":
			expression = /^[a-zA-Z0-9]([\.\-_]?[a-zA-Z0-9]+){2,19}$/;
			break;
		case "Passwd":
			expression = /^[a-zA-Z0-9]([\.\-_]?[a-zA-Z0-9]+){5,19}$/;
			break;
		case "Email":
			expression = /^[a-zA-Z0-9]([\.\-_]?[a-zA-Z0-9]+)*@[a-zA-Z0-9]+([\.-]?[a-zA-Z0-9]+)*(\.[a-zA-Z0-9]{2,4})$/;
			break;
		case "Tel":
			expression = /^\d{7,12}$/;
			break;
		case "Mobile":
			expression = /^\d{11,20}$/;
			break;
		case "Date":
			expression = /^(?:([0-9]{4}-(?:(?:0?[1,3-9]|1[0-2])-(?:29|30)|((?:0?[13578]|1[02])-31)))|([0-9]{4}-(?:0?[1-9]|1[0-2])-(?:0?[1-9]|1\d|2[0-8]))|(((?:(\d\d(?:0[48]|[2468][048]|[13579][26]))|(?:0[48]00|[2468][048]00|[13579][26]00))-0?2-29)))$/;
			break;
		case "vCode":
			expression = /^[a-zA-z0-9]{4}$/;
			break;
		case "Int":
			expression = /^(-)?\d+$/;
			break;
		case "Numeric":
			expression = /^(-)?\d+(\.\d+)?$/;
			break;
		case "Domain":
			expression = /^([a-zA-z0-9]+((\.)[a-zA-z0-9]+)+|localhost)$/;
			break;
		case "IPv4":
			expression = /^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])(\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])){3}$/;
			break;
		case "Text":
			expression = /^([^\x00-\xff]|[\w\.\-])+$/;
		    break;
		case "ID":
			expression = /^\d+((,|, )\d+)*$/;
		    break;
		case "Array":
			expression = /^[a-zA-Z0-9\-\u4e00-\u9fa5]+((,|, )[a-zA-Z0-9\-\u4e00-\u9fa5]+)*$/;
		    break;
		case "DBChar":
			expression = /[☆★○●◎◇◆□■△▲〓]/;
		    break;
		default:
			return false;			
	}
	return expression.test(str);
}


function openwin(file, name, para) {
    window.open(file, name, para);
    return (false);
}

function CheckAll(form) {
    for (var i = 0; i < form.elements.length; i++) {
        var e = form.elements[i];
        if (e.name != "chkall") {
            e.checked = form.chkall.checked;
        }
    }
}

function Confirm(form, msg) {
    var result = false;
    for (var i = 0; i < form.elements.length; i++) {
        var e = form.elements[i];
        if (e.name == "ID" && e.checked) {
            result = true;
            break;
        }
    }
    if (!result) {
        alert("请选择至少一条记录！");
    } else {
        result = confirm(msg);
    }
    return result;
}


function jumpToPage(el) {
    if (!Validate(el.value, "Int")) {
        alert("页码必须为整数！");
        el.focus();
        el.select();
        return (false);
    }

    obj = $("QString");
    if (obj != null) {
        var target = obj.value + el.value;
        self.location = target;
    } else {
        alert("QString 参数取值失败！");
    }

    return (false);
}









function changeBack(el, color) {
    var tds = el.getElementsByTagName("td");
    for (var i = 0; i < tds.length; i++) {
        tds[i].style.backgroundColor = color;
    }
    //el.style.backgroundColor = color;
}

function resizeImg(ename)
{var divContent = document.getElementById(ename);
if(divContent){
var imgNodes = divContent.getElementsByTagName("img");
for(var i = 0; i < imgNodes.length; i++){
var e = imgNodes[i];
if(e.width > 640){
e.width = 640;}}}}

function changeCSS(e, classid) {
    var div = document.getElementById("divLouPanPhoto"); var aryA = div.getElementsByTagName("a");
    for(var i = 0; i < aryA.length; i++) {
        aryA[i].className = null;
    }
    e.className = "chk";
    
    var ulPhoto = document.getElementById("ulPhoto");
    
    if(ulPhoto){
        var aryLI = ulPhoto.getElementsByTagName("li");
        for(var i = 0; i < aryLI.length; i++) {
            if(parseInt(aryLI[i].classid) == classid) { aryLI[i].style.display = "block"; } else { aryLI[i].style.display = "none"; }
        }
    }
}

function loupanPhotoInit(classid) {
    var div = document.getElementById("divLouPanPhoto"); var aryA = div.getElementsByTagName("a");   
    changeCSS(aryA[0], classid);
}

function switchLabel(id, max) {
    for(var i = 1; i <= max; i++) {
        var li = document.getElementById("li_" + i);
        var ul = document.getElementById("ul_" + i);
        li.className = null; ul.className = null;
    }
    var li = document.getElementById("li_" + id);
    var ul = document.getElementById("ul_" + id);
    li.className = "chk"; ul.className = "list";
}

function resizePhoto(e, w) {
    if(e.width > w) {
        e.width = w;
    }
}