/*
	[UCenter Home] (C) 2007-2008 Comsenz Inc.
	$Id: script_common.js 10862 2008-12-30 02:50:59Z liguode $
*/


//iframe包含
if (top.location != location) {
	top.location.href = location.href;
}

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

function addSort(obj) {
	if (obj.value == 'addoption') {
 	var newOptDiv = document.createElement('div')
 	newOptDiv.id = obj.id+'_menu';
 	newOptDiv.innerHTML = '<h1>添加</h1><a href="javascript:;" onclick="addOption(\'newsort\', \''+obj.id+'\')" class="float_del">删除</a><div class="popupmenu_inner" style="text-align: center;">名称：<input type="text" name="newsort" size="10" id="newsort" class="t_input" /><input type="button" name="addSubmit" value="创建" onclick="addOption(\'newsort\', \''+obj.id+'\')" class="button" /></div>';
 	newOptDiv.className = 'popupmenu_centerbox';
 	newOptDiv.style.cssText = 'position: absolute; left: 50%; top: 200px; width: 400px; margin-left: -200px;';
 	document.body.appendChild(newOptDiv);
 	$('newsort').focus();
 	}
}
	
function addOption(sid, aid) {
	var obj = $(aid);
	var newOption = $(sid).value;
	$(sid).value = "";
	if (newOption!=null && newOption!='') {
		var newOptionTag=document.createElement('option');
		newOptionTag.text=newOption;
		newOptionTag.value="new:" + newOption;
		try {
			obj.add(newOptionTag, obj.options[0]); // doesn't work in IE
		} catch(ex) {
			obj.add(newOptionTag, obj.selecedIndex); // IE only
		}
		obj.value="new:" + newOption;
	} else {
		obj.value=obj.options[0].value;
	}
	// Remove newOptDiv
	var newOptDiv = document.getElementById(aid+'_menu');
	var parent = newOptDiv.parentNode;
	var removedChild = parent.removeChild(newOptDiv);
}

function checkAll(form, name) {
	for(var i = 0; i < form.elements.length; i++) {
		var e = form.elements[i];
		if(e.name.match(name)) {
			e.checked = form.elements['chkall'].checked;
		}
	}
}

function cnCode(str) {
	return is_ie && document.charset == 'utf-8' ? encodeURIComponent(str) : str;
}

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

function in_array(needle, haystack) {
	if(typeof needle == 'string' || typeof needle == 'number') {
		for(var i in haystack) {
			if(haystack[i] == needle) {
					return true;
			}
		}
	}
	return false;
}

function strlen(str) {
	return (is_ie && str.indexOf('\n') != -1) ? str.replace(/\r?\n/g, '_').length : str.length;
}

function getExt(path) {
	return path.lastIndexOf('.') == -1 ? '' : path.substr(path.lastIndexOf('.') + 1, path.length).toLowerCase();
}

function doane(event) {
	e = event ? event : window.event;
	if(is_ie) {
		e.returnValue = false;
		e.cancelBubble = true;
	} else if(e) {
		e.stopPropagation();
		e.preventDefault();
	}
}


//滚动
function startMarquee(h, speed, delay, sid) {
	var t = null;
	var p = false;
	var o = $(sid);
	o.innerHTML += o.innerHTML;
	o.onmouseover = function() {p = true}
	o.onmouseout = function() {p = false}
	o.scrollTop = 0;
	function start() {
	    t = setInterval(scrolling, speed);
	    if(!p) {
			o.scrollTop += 2;
		}
	}
	function scrolling() {
	    if(p) return;
		if(o.scrollTop % h != 0) {
	        o.scrollTop += 2;
	        if(o.scrollTop >= o.scrollHeight/2) o.scrollTop = 0;
	    } else {
	        clearInterval(t);
	        setTimeout(start, delay);
	    }
	}
	setTimeout(start, delay);
}

function readfeed(obj, id) {
	if(Cookie.get("read_feed_ids")) {
		var fcookie = Cookie.get("read_feed_ids");
		fcookie = fcookie + ',' + id;
	} else {
		var fcookie = id;
	}
	Cookie.set("read_feed_ids", fcookie, 120);
	obj.className = 'feedread';
}