//显示或者隐藏栏目
function showsubmenu(sid)
{
	whichEl = eval("document.getElementById('"+"submenu" + sid+"')");
	imgmenu = eval("document.getElementById('"+"imgmenu" + sid+"')");
	if (whichEl.style.display == "none")
	{
		if (whichEl.style.display=='none') whichEl.style.display='';
			else whichEl.style.display = 'none';
		imgmenu.background="Images/manage/menuup.gif";
	}
	else
	{
		if (whichEl.style.display=='none') whichEl.style.display='';
			else whichEl.style.display = 'none';
		imgmenu.background="Images/manage/menudown.gif";
	}
}

//时间	
function get_time()
{
var a;
a=new Date()
document.write(a.getFullYear()+"-"+a.getMonth()+"-"+a.getDate()+"  "+a.getHours()+":"+a.getMinutes()+":"+a.getSeconds())
			
}	

function OpenUploadwin(winName)
{
	win=window.open(winName,"upload","width=550,height=450,left=0,top=0,scrollbars=1,status=1,resizable=1");
	win.focus();
}	


function SelectAll (chkVal, idVal) { 

var thisfrm = document.forms[0]; 


// 查找Forms里面所有的元素 

for (i=0; i<thisfrm.length; i++) { 

// 查找模板头中的CheckBox 

if (idVal.indexOf ('chkAll') != -1) { 

if(chkVal == true) { 

thisfrm.elements[i].checked = true; 

} 

else { 

thisfrm.elements[i].checked = false; 

} 

} // if 

// 如果除题头以外的项没有全选上则取消题头的选择 

else if (idVal.indexOf ('chkDelete') != -1) { 

if(thisfrm.elements[i].checked == false) { 

thisfrm.elements[1].checked = false; 

} 

} 

} // for 

} 


//<图片超过规定的大小就按原图片大小缩小
function changeImg(mypic,Pw,Ph){  
    var xw=Pw;  
    var xl=Ph;  
          
    var width = mypic.width;  
    var height = mypic.height;  
    var bili = width/height;          
          
    var A=xw/width;  
    var B=xl/height;  
          
    if(A>1||B>1)  
    {  
        if(A<B)  
        {  
            mypic.width=xw;  
            mypic.height=xw/bili;  
        }  
        if(A>B)  
        {  
            mypic.width=xl*bili;  
            mypic.height=xl;  
        }  
    }  
}