function SetCheckBox(Sform, Sname, Stf)
{	//设置复选框选中函数//Sform:表单名. Sname:复选框名. Stf:设置属性,1=全选,2=反选,3=不选.
    var Box=document.forms[Sform].elements[Sname];
	if(typeof(Box)=='undefined')
	{
		return;
	}
	var BoxCon=(typeof(Box.length)!='undefined') ? Box.length-1 : 0;
	if (BoxCon != 0){
		if(Stf==1)
		{
			for(i=0;i<=BoxCon;i++)
			{
				Box(i).checked=true;
			}
		}
		else if(Stf==2)
		{
			for(i=0;i<=BoxCon;i++)
			{
				Box(i).checked=Box(i).checked==true?false:true;
			}
		}
		else
		{
			for(i=0;i<=BoxCon;i++)
			{
				Box(i).checked=false;
			}
		}
	}
	else
	{
		if(Stf==1)
		{
			Box.checked=true;
		}
		else if(Stf==2)
		{
			Box.checked=Box.checked==true?false:true;
		}
		else
		{
			Box.checked=false;
		}
	}
	return true;
}
function CheckBoxs(Sform,Sname)
{
	var SortID = form2.MovieSortID.value;
	if (SortID!==""){
		return true;
		}
	var Cbox=document.forms[Sform.name].elements[Sname];
	if(typeof(Cbox)=='undefined')
	{
		return false;
	}
	
	if (typeof(Cbox.length)!='undefined')
	{
		for(var i=0;i<=Cbox.length-1;i++)
		{
			if(Cbox(i).type=='checkbox' && Cbox(i).checked)
			{
				return true;
			}
		}
	}
	else
	{
		if(Cbox.type=='checkbox' && Cbox.checked)
		{
			return true;
		}
	}
	return false;
}
function KeyDown(){ 
//alert(event.keyCode);
//屏蔽 Alt+F4
//if ((event.altKey == true)&&(event.keyCode==115)) {
//	window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px"); 
//	return false;} 
//屏蔽 Shift
//if (event.shiftKey == true){alert("Shift键已屏蔽")} 	
//屏蔽 Ctrl + R
if (event.ctrlKey == true && event.keyCode==82)
	{event.keyCode=0;return false;} 
//屏蔽 F3、F4、F5 、F6、F11
if ((event.keyCode==114)||(event.keyCode==115)||(event.keyCode==116)||(event.keyCode==117)||(event.keyCode==122))
	{event.keyCode=0;return false;} 
//屏蔽 Alt+方向键
if ((event.altKey == true)&&((event.keyCode==37)||(event.keyCode==39))) {   
	return false;}
//屏蔽 Ctrl+N
if ((event.ctrlKey == true)&&(event.keyCode==78)) {return false;}
//屏蔽 shift+F10
if ((event.shiftKey == true)&&(event.keyCode==121)) {return false;}
} 
document.onkeydown = KeyDown;

// 显示无模式对话框
function eShowDialog(url, width, height, optValidate) {
	if (optValidate) {
		if (!validateMode()) return;
	}
	var arr = showModalDialog(url, window, "dialogWidth:" + width + "px;dialogHeight:" + height + "px;help:no;scroll:no;status:no");
}
// 显示帮助
function pp(url,width,height){
	eShowDialog(url,width,height);
	return false;
}