// JavaScript Document


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; 
  for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function PrintArticle(id){
	abc = window.open('print.php?a_id='+id+'&action=print','print_article','width=626,height=600,resizable=No,scrollbars=Yes,left=0,top=0');
}

function ForwardArticle(article_id,article_title){
	window.open('forward.php?article_id='+article_id+'&article_title='+article_title ,'forward_article','width=517,height=600,resizable=No,scrollbars=Yes,left=0,top=0');
}

function PrintOffer(m_id){
	window.open('print.php?m_id='+m_id , 'PrintMerchant' , 'width=626,height=600,resizable=Yes,scrollbars=Yes,left=0,top=0' );
}

	
function check_login(action){	
	var str = document.login_form;
	str.location_URL.value = "<?=$_SERVER['REQUEST_URI'];?>";

	switch (action){
		case "login":
				if (str.login_id.value=="" || str.login_id.value.length==0){
					alert('Please fill in the Member ID');
					str.login_id.focus();
					return false;
				}else if(str.login_pwd.value=="" || str.login_pwd.value.length==0 || str.login_pwd.value.length<=5){
					alert('Please fill in the Password');
					str.login_pwd.focus();
					return false;
				}else{
					str.action = "../member/login_process.php?action=login";
					str.submit();
				}
				break;
		case "logout" :
				str.action = "../member/login_process.php?action=logout";
				str.submit();
				break;
		default : return false;
	}
}

function check_key(sub_function)
{
	if (event.keyCode==13){
		if (sub_function=='login')
		check_login('login');
	}else{
		return false;
	}
}

function goURL(path){
	if(path && path!='#'){
		window.location=path;
	}else{
		return false;
	}
}

function ChangeLocation(Obj){
	var path
	str = Obj.options[Obj.selectedIndex].value;
	if (!str==""){
		window.location = str;
	}else{
		return false;
	}
}

function change_topic(str){
	var path
	path = str.options[str.selectedIndex].value
	if (!path==""){
		window.location=path;
	}else{
		return false;
	}
}

function pop_win(path , width , height){
	window.open(path,'pop_win','width='+width+' , height='+height+',resizable=no,scrollbars=Yes,top=0,left=0');
}

function pop_img(img_path,copyright){
	window.open('../promote/pop_img.php?img_path='+img_path+'&copyright='+copyright,'Img_Zoom','width=500,height=600,resizable=Yes,scrollbars=Yes');
}


function menu_on(x){
	obj=document.getElementById(x).style.display="block";
}
function menu_off(x){
	obj=document.getElementById(x).style.display="none";
}

function SubMenuOver(Tar){
	Tar.className = "menu_over_bg";
}

function SubMenuOut(Tar){
	Tar.className = "menu_org_bg";
}

function highBG(tar,tarC,tac_fontcolor){
	tar.style.backgroundColor = tarC;
	tar.style.color = tac_fontcolor;
}

function trim(str) {
	return str.replace(/^\s+|\s+$/g, "");
}


function setFavorite(){
	if (navigator.appName=="Netscape") {
		alert('Not Suport¡C');
	}else if (parseInt(navigator.appVersion)>3){
		window.external.AddFavorite('http://www2.hkct.edu.hk' , 'HKCT');
	}
}