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


//复制代码

function Copytxt(id)
{
 var txt = document.body.createTextRange();
 txt.moveToElementText($(id));
 txt.select();
 document.execCommand("Copy"); 
}

//加入IM群
function button10_onclick(aa) 
{
    try{
		var im  = new ActiveXObject("HCLogin.DetectHcIM");
		var groupid=aa;
		var ret = im.join_qun(groupid);
	}
	catch(e)
	{
		return false;//提示用户不是最新的版本，请重新登陆IM！
	}
	return true;
}

//删除双重BR
function delbr(id,num){
	var dobj = $(id);
	var tdobj = dobj.getElementsByTagName("td");
	var con,temcon,tcode;
	for(i=0;i<tdobj.length;i++){
		con = tdobj[i].innerHTML;
		if(num==1)
			tdobj[i].innerHTML = con.substring(0,con.length-4);
		else
			tdobj[i].innerHTML = con.replace(/(\<br\>)+/gi,"<br>");		
	}
}
/*function delbr(id){
	var dobj = $(id);
	var tdobj = dobj.getElementsByTagName("td");
	var con,temcon,tcode;
	for(i=0;i<tdobj.length;i++){
		con = tdobj[i].innerHTML;
		tcode = con.split("<BR><BR>");
	temcon = tcode.join("<BR>");
		tdobj[i].innerHTML = temcon;
	}

}*/


function endAdv(str1,str2,initheight)
	{
		if($(str1)&&$(str2))
			{
				$(str1).style.height = initheight + "px";
				$(str1).innerHTML = $(str2).innerHTML;
				$(str2).innerHTML = "";
			}
	}


//文本框获取焦点//针对:iframe广告抢走input=text焦点
function inputFocus(obj){
	$(obj).focus();
}


// 自动检索url地址并重新赋带参数的url 
//@parm urlIndex(检索的url,加参的标识,显示当前加载页的状态是iframe则设参不是则不写) 

function urlIndex(url,pname,t){
	var aChild = new Array;
	var pos = new Array;
	var trades = new Array;
	var temppos,pageUrl,parm,trade,n;
	aChild = document.getElementsByTagName("a");
	for(var i=0;i<aChild.length;i++){
		if (aChild[i].href == url){
			temppos = i;
			pos.push(temppos);
		}
	}
	if(arguments[2]==null){
		pageUrl = location.href;
		if (pageUrl.indexOf("html")==-1 && pageUrl.indexOf("shtml")==-1 && pageUrl.indexOf("htm")==-1){
			parm = "index";
		}
		else{
			parm = pageUrl.substring(pageUrl.lastIndexOf("/")+1,pageUrl.lastIndexOf("."));
		}
	}else{
		parm = location.search.substring(1);
	}
	trades = location.href.split(".");
	for(var m=0;m<trades.length;m++){
		if(trades[m].toLowerCase() == "syc114"){
			n = m;
			break;
		} 
	}
	if(n!=2){
		trade = trades[0].substring(trades[0].indexOf("http://")+7).toLowerCase();
		if(trade=="www" || trade=="ebook" || trade=="data" || trade=="expo" || trade=="info") trade = "";
		else trade = trade + "_";
	}else{
		trade = trades[1] + "_";
	}
	for(var j=0;j<pos.length;j++){
		aChild[pos[j]].href = url + "?" + pname + "=" + trade + parm;
	}
}

var curIndex = window.location.href;
window.attachEvent('onbeforeunload',function(){
var   n   =   window.event.screenX   -   window.screenLeft;
var   b   =   n   >   document.documentElement.scrollWidth-20;
	if(curIndex.indexOf("syc114.com")!=-1 && curIndex.indexOf(".html")==-1 && curIndex.indexOf(".shtml")==-1 && curIndex.indexOf(".htm")==-1 && curIndex.indexOf("http://ebook")==-1 && curIndex.indexOf("http://expo")==-1 && curIndex.indexOf("http://data")==-1 && curIndex.indexOf("http://info")==-1 && curIndex.indexOf("http://www.syc114.com")==-1){
		if(b   &&   window.event.clientY   <   0   ||   window.event.altKey)   
		{
			window.showModalDialog("http://www.syc114.com/",window,"dialogWidth:"+(window.screen.width-20)+"px;dialogTop: 20px; dialogLeft: 20px;resizable:yes;status:yes;scrollbars:yes;toolbar:yes;");
		}
	}
});

//iframe自适应高度控制函数(支持跨域的页面调用)
function resetIframeHeight()
	{
		try
			{
				var str=window.clipboardData.getData('text');
				var obj=document.getElementById('iframeID');
  			if(str.match(/^frameHeight=\d+$/))
  				{
						obj.style.height=parseInt(str.match(/\d+/))+'px';
						window.clipboardData.setData('text','null');
					}
			}
		catch(e){}
		setTimeout(resetIframeHeight,100);
	}
	
//导航菜单展开收缩	
function showNaviMenu(obj,id)
	{
		var mobj = $(id);
		if(mobj)
			{
				var fobj = obj.getElementsByTagName("font");
				if(mobj.style.display=='none')
					{
						mobj.style.display='block';
						fobj[0].innerText='收缩';
					}
				else
					{
						mobj.style.display='none';
						fobj[0].innerText='更多';
					}
			}
	}