function changeLayer(lay,att){
		if(document.all){
			strlay="window.document.all." + lay + ".style";
		}else if (document.layers){
			strlay="window.document." + lay;
		}
		else{
			alert("Sorry, this only works in 4.0 browers");
			return;
		}
		lay=eval(strlay);
		lay.visibility=att;	
	}
	
	
//Insert Hyperlink cho NDTat

	function insertH(){
		changeLayer('layer1','visible')
		changeLayer('layer2','hidden')
		news.dis.focus()
		//news.dis.value=news.td.value
		
	}
	
// An layer NDTAt khi nhap Insert

	function setHide(){
		var str_dis,str_to;
		str_dis=news.dis.value;
//		news.dis.
		str_to=news.to.value;
		news.NDTat.value=news.NDTat.value + "<a href=\"" + str_to + "\"\>" + str_dis + "</a>"
		changeLayer('layer1','hidden');	
		changeLayer('layer2','visible')

	}

// An layer NDTat khi nhap Cancel

	function Hide(){
		changeLayer('layer1','hidden');
		changeLayer('layer2','visible')
	}
 
//Insert Hyperlink cho Body 

 function insertH2(){
		changeLayer('layer4','visible')
		changeLayer('layer3','hidden')
		news.dis0.focus()
		//news.dis.value=news.td.value
		
	}
	
	function setHide2(){
		var str_dis,str_to;
		str_dis=news.dis0.value;
//		news.dis.
		str_to=news.to0.value;
		news.Body.value=news.Body.value + "<a target=\"_blank\" href=\"" + str_to + "\"\>" + str_dis + "</a>"
		changeLayer('layer4','hidden');	
		changeLayer('layer3','visible')

	}
	function Hide2(){
		changeLayer('layer4','hidden');
		changeLayer('layer3','visible')
	}








// them dien giai cho hinh anh
function setHideDG(listDG){
	if((news.txtDG.value.lastIndexOf("*###*") ==-1) && (news.txtDG.value.lastIndexOf("NONE") ==-1) )    { // kiem tra co nhap chuoi co ; ko?
			
			
			
		if (news.txtDG.value.length==0){
			news.txtDG.value="NONE"
		}
		news.picn.value=news.txtDG.value
		var str=news.picn.value
		addList(listDG,str)				
		changeLayer('layerDG','hidden');		
	
	}
	else{	
		alert("Chu thich khong hop le.\n Khong duoc chua dau *##* hoac NONE ")
	}
}

// an nut Cancal: khong nhap dien giai 

	function HideDG(listDG){
		
		var str="NONE"
		addList(listDG,str)
			
		changeLayer('layerDG','hidden');		
		
	}



// cho hien thi form DG

function showDG(d){
	if (d){
		if ( news.ldg.length !=0){
		changeLayer('layerDG','visible')
		news.txtDG.focus()
		}else{
			addList(news.ldg,'NONE')
		}
	}
}

// khi chon hinh anh thi dg cung chon tuong ung

function selectDG(pic,dg){
	for(var i=0;i<pic.length;i++){
		if(pic.options[i].selected){		
			dg.options[i].selected=true
		}
		else dg.options[i].selected=false

	}
}


// gui hinh anh & dg cho POST

function guiND(){
	var len=0

	len=news.lpic.length
	var pic=""
	var des=""
	//alert(len)	
	if (len >0 ){
		// luu hinh chinh
		news.txtpicM.value=news.lpic.options[0].value;

		for (var i=1; i<len;i++){


			if (i==1){
				pic =news.lpic.options[i].value;						
								
				des =news.ldg.options[i].value;

			}else{

						
				pic =pic + "*##*" + news.lpic.options[i].value;						
								
				des =des + "*##*" + news.ldg.options[i].value;
			}
		
		}
	}
	//alert("picT=" + pic)
	//alert("des=" + des)
	//alert(news.txtpicM.value)
// luu lai ten cac hinh khac va dien giai	
	if (pic != "" ){
		news.txtpicT.value=pic + "*##**@@@*"
		news.txtDes.value=des + "*##**@@@*"
	}else{
		news.txtpicT.value=pic
		news.txtDes.value=des
	}	


}


// Kiem tra checkbox la nhap ND vao Body hay lien ket file: Addnew.asp

function isInsertND(){
	if (news.nd.checked){
		news.Body.disabled=true		
		//changeLayer('layer10','visible') // show Browse File
		news.file.disabled=false
		news.cfile.value="Y"
		//news.Body.value="Attach File"
	}
	else{
		news.Body.disabled=false
		//news.Body.value=""
		//changeLayer('layer10','hidden')
		news.file.disabled=true
		news.Body.focus()
	}

}



// Kiem tra checkbox la nhap ND vao Body hay lien ket file: Update.asp

function isInsert(fl,level,fn){
	if (news.nd.checked){
		news.Body.disabled=true	
		news.file.disabled=false	 // show browse file
		news.cfile.value="Y"
					
	}
	else{
		news.Body.disabled=false
		news.file.disabled=true
		//news.Body.value=""				
		news.Body.focus()
	}

}

// Neu ND la file thi cho check checkbox file

function setFilePic(fl,pic,level,fn){
	//  check file-checkbox
	//alert(pic);
	if(fl=="Y"){
		news.nd.checked=true
		news.file.disabled=false	
		news.Body.disabled=true
	}
	
	if(pic=="Y"){
		news.ckp.checked=true
		news.pic.disabled=false	
		
	}
	setFinish(fl,pic,level,fn)
}


function setFinish(fl,pic,level,fn){
	if ((level=="Admin") && (fn=="N") && ( (fl=="Y") || (pic=="Y") )   ){
		changeLayer('layer10','visible')
	}
	else{
		changeLayer('layer10','hidden')
	}



}

// checkbox kiem tra them anh

function isPicture(){
	if (news.ckp.checked){
		news.cpic.value="Y"
		news.pic.disabled=false
	}
	else{
		news.cpic.value="N"
		news.pic.disabled=true
	}
}


// cho hien thi USERNAME if la Admin

function showUSER(ad){
	if (ad=="Admin" ){
		changeLayer('layerUSER','visible')	
		//changeLayer('layerUnload','visible')
	}
	else{
		changeLayer('layerUSER','hidden')
		//changeLayer('layerUnload','hidden')
	}

}