common.js

网上购物系统

if(document.all)
{
    document.execCommand("BackgroundImageCache", false, true);
    }
    
    if(!window.attachEvent && window.addEventListener)
{
  Window.prototype.attachEvent = HTMLDocument.prototype.attachEvent=
  HTMLElement.prototype.attachEvent=function(en, func, cancelBubble)
  {
    var cb = cancelBubble ? true : false;
    this.addEventListener(en.toLowerCase().substr(2), func, cb);
  };
  Window.prototype.detachEvent = HTMLDocument.prototype.detachEvent=
  HTMLElement.prototype.detachEvent=function(en, func, cancelBubble)
  {
    var cb = cancelBubble ? true : false;
    this.removeEventListener(en.toLowerCase().substr(2), func, cb);
  };
}
if(typeof Event!="undefined" && !window.opera)
{
  var t=Event.prototype;
  t.__defineSetter__("returnValue", function(b){if(!b)this.preventDefault();  return b;});
  t.__defineSetter__("cancelBubble",function(b){if(b) this.stopPropagation(); return b;});

}


document.onkeydown=function ()
{ 
    var event = arguments[0]||window.event;     
     var k = event.charCode||event.keyCode;   
    if (k == 13) 
    {
        event.cancelBubble = true; 
        event.returnValue = false; 
    } 
} 


window.onerror=function()
{
	return true;
}
 function WebForm_FireDefaultButton(event, target) 
 {
     if(event.srcElement.id == 'gopage1' && event.keyCode != 13)
     {
        return true;
     }
     else
            return false;
}
function MouseCursor(obj)
{
	if (is_ie)
		obj.style.cursor = 'hand';
	else
		obj.style.cursor = 'pointer';
}

function convertdate(strdate)
{
	strdate = strdate.replace(/-/ig,'/');
	var d = new Date(strdate);
	var now = new Date();
	var result;

	if (d.getYear() == now.getYear() && d.getMonth() == now.getMonth())
	{
		var xday = now.getDate() - d.getDate();

		switch (xday)
		{
			case 0:
				result = "今天 " + d.getHours() + " : " + d.getMinutes();
				break;
			case 1:
				result = "昨天 " + d.getHours() + " : " + d.getMinutes();
				break;
			case 2:
				result = "前天 " + d.getHours() + " : " + d.getMinutes();
				break;
			default:
				result = d.format("yyyy.MM.dd hh:mm");
				break;		
		}
	}
	else
	{
		result = d.format("yyyy.MM.dd hh:mm");
	}
	
	return result;
}

function convertdate2(strdate)
{
	strdate = strdate.replace(/-/ig,'/');
	var d = new Date(strdate);
	var now = new Date();
	var result = now - d;
	alert('result:'+result);
	if (now.getYear() == d.getYear() && now.getMonth() == d.getMonth() && now.getDate() - d.getDate() > 0)
	{
		result = (now.getDate() - d.getDate()) + " 天前";
	}
	else if (now.getYear() == d.getYear() && now.getMonth() == d.getMonth() && now.getDate() == d.getDate() && now.getHours() - d.getHours() > 0)
	{
		result = (now.getHours() - d.getHours()) + " 小时前"
	}
	else if (now.getYear() == d.getYear() && now.getMonth() == d.getMonth() && now.getDate() == d.getDate() && now.getHours() == d.getHours() && now.getMinutes() - d.getMinutes() > 0)
	{
		result = (now.getMinutes() - d.getMinutes()) + " 分钟前"
	}
	else
	{
		result = d.format("yyyy.MM.dd hh:mm");
	}
	return result;

}

Date.prototype.format = function(format)
{
	var o = {
	"M+" : this.getMonth()+1, //month
	"d+" : this.getDate(),    //day
	"h+" : this.getHours(),   //hour
	"m+" : this.getMinutes(), //minute
	"s+" : this.getSeconds(), //second
	"q+" : Math.floor((this.getMonth()+3)/3),  //quarter
	"S" : this.getMilliseconds() //millisecond
	};
	if(/(y+)/.test(format)) 
	{
		format = format.replace(RegExp.$1,
			(this.getFullYear() + "").substr(4 - RegExp.$1.length));
	}
	for(var k in o)
	{
		if(new RegExp("("+ k +")").test(format))
			format = format.replace(RegExp.$1,
				RegExp.$1.length==1 ? o[k] : ("00"+ o[k]).substr((""+ o[k]).length));
	}
	return format;
}

function undefined(variable) {
	return typeof variable == 'undefined' ? true : false;
}

function findobj(n, d) {
	
	var p, i, x;	
	if(!d) d = document;
	if((p = n.indexOf("?"))>0 && parent.frames.length) {
		d = parent.frames[n.substring(p + 1)].document;
		n = n.substring(0, p);
	}
	if(x != d[n] && d.all) x = d.all[n];
	for(i = 0; !x && i < d.forms.length; i++) x = d.forms[i][n];
	for(i = 0; !x && d.layers && i < d.layers.length; i++) x = findobj(n, d.layers[i].document);
	if(!x && document.getElementById) x = document.getElementById(n);
	
	return x;
}


function expandoptions(id)
{
	var a = document.getElementById(id);
	if(a.style.display=='')
	{
		a.style.display='none';
	}
	else
	{
		a.style.display='';
	}
}

function cloneObj(oClone, oParent, count) {
	if(oParent.childNodes.length < count) {
		var newNode = oClone.cloneNode(true);
		oParent.appendChild(newNode);
		
		return newNode;
	} 
	return false;	
}

function delObj(oParent, count) {
	if(oParent.childNodes.length > count) {
		oParent.removeChild(oParent.lastChild);
		return true;
	}
	return false;
}

function cloneObj_1(oClone, oParent, i, count, msgtext)
{

	var tempcount = 1;
	for(k=0;k<oParent['childNodes'].length;k++){
		if (oParent['childNodes'][k].tagName){
			
			if (oParent['childNodes'][k].id == oClone.id){
				tempcount ++;
			}
			
		}
	}

	if(tempcount <= count)
	{
		for(;i>0;i--)
		{
			newNode = oClone.cloneNode(true);
			oParent.appendChild(newNode);
		}
	}
	else
	{
		alert(msgtext);
	}
}

function clonePoll(maxpoll){
	var newNode = cloneObj(document.getElementById('divPollItem'), document.getElementById('polloptions') ,maxpoll);
	if(!newNode){
		alert('投票项不能多于 ' + maxpoll + ' 个');
	}
	var inputs = findtags(newNode, 'input');
	var attach;
	for(i in inputs) {
		if(inputs[i].name == 'pollitemid') {
			inputs[i].value="";
			inputs[i].id = "pollitemid";
		}
	}
}

function delOjb_1(oParent, count, msgtext)
{
	var tempcount = 0;
	for(k=0;k<oParent['childNodes'].length;k++){
		if (oParent['childNodes'][k].tagName){
			
				tempcount ++;
			
		}
	}
	
	if(tempcount > count)
	{
		oParent.removeChild(oParent.lastChild);
	}
	else
	{
		alert(msgtext);
	}
}

//选择或取消选反列表中全部记录

function checkall(form, prefix, checkall) {
	var checkall = checkall ? checkall : 'chkall';
	for(var i = 0; i < form.elements.length; i++) {
		var e = form.elements[i];
		if(e.name != checkall && (!prefix || (prefix && e.name.match(prefix)))) {
			e.checked = form.elements[checkall].checked;
		}
	}
}

//显示主题图标
function showicons(icons,iconscount,iconscolcount){
	var row=null;
	var col=null;
	var img=null;
	var rowIndex=0;
	var colIndex=0;
	var iCount = 0;
	
	if(undefined(iconscount)) {
		var iconscount = 0;
	}
	
	if(undefined(iconscolcount)) {
		var iconscolcount = 0;
	}
	

	try{

		var icons_container = findobj('iconsdiv');
		var iconstable = document.createElement('table');
				iconstable.cellPadding="2";
				iconstable.cellSpacing="0";
				iconstable.border=0;
				//iconstable.className="altbg1";
				
				iconstable.style.border="0px";
				
				iconstable.id="topiciconstable";
				
		if (!icons.length){
			iCount = 0;
		}
		else{
			iCount = icons.length
		}
		
		if (iconscount > 0 ){
			if (iCount > iconscount){
				iCount = iconscount			
			}
		}
		
		iCount = iCount + 1;
		if (iconscolcount <1){
			iconscolcount = parseInt((iCount + 1) / 2)
		}

		
		var temp_iCount = 1;
		
		row=iconstable.insertRow(-1);		
		col=row.insertCell(-1);
		col.vAlign="middle";
		col.align = "left";
		col.width = "49";
		col.innerHTML = '<input type="radio" id="icon_0" name="iconid" value="0"> <label for="icon_0">无</label>';
		
		colIndex++;
		
		for(i=0;i<icons.length;i++)
		{
		
			if (icons[i]){
				temp_iCount ++;
				if (temp_iCount>iCount){
					break;
				}
				
				if (colIndex>=iconscolcount || colIndex<1){
					row=iconstable.insertRow(-1);		
					colIndex=0;
					
				}
				col=row.insertCell(-1);
				col.vAlign="middle";
				col.align = "left";
				col.width = "49";
				col.innerHTML = '<input type="radio" id="icon_' + icons[i][0] + '" name="iconid" value="' + icons[i][0] + '"> <img src="images/posticons/' + icons[i][1] + '" width="19" height="19" />';
/* 
				input = document.createElement('input');
				input.type = "radio";
				input.value = icons[i][0];
				input.id = "icon_" + icons[i][0];
				input.name = "iconid";
				col.appendChild(input);
				
				img=document.createElement('img');