/*********start accessibilty***************/
function toggle (id) {
var post = document.getElementById(id);
if (post.className=="portletshown") { 
post.className="portlethidden"; 
} else { 
post.className="portletshown"; 
}
}
function changeLocation (targetURL) {
window.location = targetURL;
}
/*********besarkan saiz tulisan**************/	
function setFontPlus(id){
var size = document.getElementById(id).style.fontSize;
if(size == "" || size == null) {
size = 13;
} else {
size = size.substr(0,2);
}
if(size < 15) {
if(size == 14) {
size = eval(size) + 2;
} else {
size = eval(size) + 1;
}
var fontSize = size + "px";
document.getElementById(id).style.fontSize=fontSize
changecss('#nav li a','font-size',fontSize);
changecss('.portlet-title','font-size',fontSize);
}
}// end setFontPlus
/*********kecilkan saiz tulisan*************/
function setFontMinus(id){
var size = document.getElementById(id).style.fontSize;
if(size == "" || size == null) {
size = 10; 
} else {
size = size.substr(0,2);
} 
if(size > 10) {
if(size == 16) {
size = eval(size) - 2;
} else {
size = eval(size) - 1;
}
var fontSize = size + "px";
document.getElementById(id).style.fontSize=fontSize
changecss('#nav li a','font-size',fontSize);
changecss('.portlet-title','font-size',fontSize);
}
}
/**********kembalikan warna asal*************/
function revertStyles(){
changecss('.portlet-title','color','white');
changecss('#nav a','color','#ffffff');
changecss('body','color','black');
changecss('a','color','#5078AA');
changecss('a:hover','color','#7EACD6');
changecss('input[type="text"], input[type="password"], input[type="file"],input[type="submit"], input[type="button"], input[type="reset"], select, textarea, .textarea','color','black');
}
/********kembalikan saiz huruf kepada asal************/
function revertFontStyles(id){
var size = document.getElementById(id).style.fontSize;
if(size == "" || size == null) {
size = 11; 
} else {
size = size.substr(0,2);
} 
if(size > 10) {
if(size == 16) {
size = 11;
} else {
size = 11;
}
var fontSize = size + "px";
document.getElementById(id).style.fontSize=fontSize
}
changecss('.portlet-title','font-size','10px');
changecss('#nav li a','font-size','13px');
}
function changecss(theClass,element,value) {
//Last Updated on May 21, 2008
//documentation for this script at
//http://www.shawnolson.net/a/503/altering-css-class-attributes-with-javascript.html
 var cssRules;
 if (document.all) {
 cssRules = 'rules';
 }
 else if (document.getElementById) {
 cssRules = 'cssRules';
 }
 var added = false;
 for (var S = 0; S < document.styleSheets.length; S++){
 for (var R = 0; R < document.styleSheets[S][cssRules].length; R++) {
 if (document.styleSheets[S][cssRules][R].selectorText == theClass) {
 if(document.styleSheets[S][cssRules][R].style[element]){
 document.styleSheets[S][cssRules][R].style[element] = value;
 added=true;
 break;
 }
 }
 }
 if(!added){
 if(document.styleSheets[S].insertRule){
 document.styleSheets[S].insertRule(theClass+' { '+element+': '+value+'; }',document.styleSheets[S][cssRules].length);
 }
 else if (document.styleSheets[S].addRule) {
 document.styleSheets[S].addRule(theClass,element+': '+value+';');
 }
 }
 }
}
// end function changecss
/*************tukar warna tulisan kepada warna merah**********/
/****changecss('<nama class@ id>','<element>','<value>');*************/
function fontRed(){
changecss('body','color','red');
changecss('a','color','red');
changecss('#nav a','color','red');
changecss('a:hover','color','blue');
changecss('input[type="text"], input[type="password"], input[type="file"],input[type="submit"], input[type="button"], input[type="reset"], select, textarea, .textarea','color','red');
}
/*************tukar warna tulisan kepada warna biru**********/
/****changecss('<nama class@ id>','<element>','<value>');*************/
function fontBlue(){
changecss('.portlet-title','color','blue');
changecss('body','color','blue');
changecss('#nav a','color','blue');
changecss('a','color','blue');
changecss('a:hover','color','blue');
changecss('input[type="text"], input[type="password"], input[type="file"],input[type="submit"], input[type="button"], input[type="reset"], select, textarea, .textarea','color','blue');
}
/*************tukar warna tulisan kepada warna green **********/
/****changecss('<nama class@ id>','<element>','<value>');*************/
function fontGreen(){
changecss('.portlet-title','color','green');
changecss('body','color','green');
changecss('#nav a','color','green');
changecss('a','color','green');
changecss('a:hover','color','blue');
changecss('input[type="text"], input[type="password"], input[type="file"],input[type="submit"], input[type="button"], input[type="reset"], select, textarea, .textarea','color','green');
}
/*************tukar warna tulisan kepada warna orange**********/
/****changecss('<nama class@ id>','<element>','<value>');*************/
function fontOrange(){
changecss('.portlet-title','color','orange');
changecss('body','color','orange');
changecss('#nav a','color','orange');
changecss('a','color','orange');
changecss('a:hover','color','blue');
changecss('input[type="text"], input[type="password"], input[type="file"],input[type="submit"], input[type="button"], input[type="reset"], select, textarea, .textarea','color','orange');
}
/*******end accessibility************/