function getCheckCode()
{
	  var url = $('#code_img').attr('src');
	  $('#code_img').attr('src',url+'?'+new Date().getTime());
}


//是否为合法的Email格式
function isEmail(str)
{
	var myReg = /^[_a-zA-Z0-9\-]+(\.[_a-zA-Z0-9\-]*)*@[a-zA-Z0-9\-]+([\.][a-zA-Z0-9\-]+)+$/;
	if ( myReg.test(str) )
		return true;
	return false;
}


//检查登陆表单数据
function checkLoign()
{
    var oUserName = $('#login_user');
    var oPass = $('#login_password');
    
    if ($.trim(oUserName.val()) == '')
    {
    	alert('请输入用户名');
    	oUserName.focus();
    	return false;
    }
	
    if ($.trim(oPass.val()) == '')
    {
    	alert('请输入密码');
    	oPass.focus();
    	return false;
    }    
    
}


//加入收藏
function addfavorite(url,title){
   if (document.all){
      window.external.addFavorite(url,title);
   } else if (window.sidebar){
      window.sidebar.addPanel(title, url, "");
   }
} 


//删除提示

function delMsg()
{
	return confirm('你确定要删除？？');

}


function checkSearch()
{
   var obj = $('#k');
   if (obj.val() == '')
   {
   	   alert('请输入关键字');
   	   obj.focus();
   	   return false;
   }	
   
   
}


function changFont(font)
{
	$('#content').css({'font-size':font+'px'});
}

function showWindow(url,title,width,height)
{
	ymPrompt.win({message: url,width:width,height:height,title:title,iframe:true})
}



function show(obj,obj2,parent_div)
{  
   $('.main_content').hide();
   $('#'+parent_div+' ul li').each(function(){
   	   $(this).attr('class','')
   })
   $(obj).show();
   
   $(obj2).attr('class','focus');  
}


function tab(parent,tag,focusClass)
{
	var tagList = $('#'+parent+' '+tag); 
	tabList = new Array();
	tagList.each(function(){
	    tabList.push(this.getAttribute('value'));
	})

	var obj = this;  
	for (var i in tagList)
	{
		tagList[i].onmouseover = function(){
			for (var j in tabList)
			{
			    $('#'+tabList[j]).hide();
			}
			tagList.each(function(){
				$(this).removeClass(focusClass);
			})
			
			var id = this.getAttribute('value');
			$('#'+id).show();
			$(this).addClass(focusClass);
		}
	}
	
}