var ns=(document.layers)?true:false;var dom=(document.getElementById)?true:false;var ie=(document.all)?true:false;function menuCss(id,cls)
{if(dom)
{var m=document.getElementById(id);if(m)
m.className=cls;}}
function changeCss(e,cls)
{if(dom&&e&&e.className)
e.className=cls;}
function cssShow(id,v)
{var e=document.getElementById(id);if(e&&e.style){var s=v?'':'none';e.style.display=s;}}
function is_valide_email(email)
{var r=/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;return r.test(email);}
function getCoordsOfElement(e)
{if(!e)
return new coords(0,0);var r=new coords(e.offsetLeft,e.offsetTop);var l=null
for(e=e.offsetParent;e;e=e.offsetParent){r.add(e.offsetLeft,e.offsetTop);if(e.offsetTop!=0)
l=e;}
return r;}
function coords(ex,ey)
{if(!ex)
this.x=0;else
this.x=ex;if(!ey)
this.y=0;else
this.y=ey;this.addC=function(c){this.x+=c.x;this.y+=c.y;};this.add=function(nx,ny){this.x+=nx;this.y+=ny;}
this.addX=function(nx){this.x+=nx;};this.addY=function(ny){this.y+=ny;};}
function showHideFolder(id)
{var e=document.getElementById(id);if(!e)
return;if(!e.style)
return;var v=(e.style.display=='');e.style.display=v?'none':'';var i=document.getElementById(id+'-img');if(!i)
return;i.src='./images/'+(v?'folder-closed.gif':'folder-opened.gif');}
function isArray(a){return isObject(a)&&a.constructor==Array;}
function isBoolean(a){return typeof a=='boolean';}
function isEmpty(o){var i,v;if(isObject(o)){for(i in o){v=o[i];if(isUndefined(v)&&isFunction(v)){return false;}}}
return true;}
function isFunction(a){return typeof a=='function';}
function isNull(a){return typeof a=='object'&&!a;}
function isNumber(a){return typeof a=='number'&&isFinite(a);}
function isObject(a){return(a&&typeof a=='object')||isFunction(a);}
function isString(a){return typeof a=='string';}
function isUndefined(a){return typeof a=='undefined';}