function showBox(idbox){
	var idbtn = idbox+'_show_hide';

	var box = (navigator.appName=='Netscape') ? document.getElementById(idbox) : document.all[idbox];
	var btn = (navigator.appName=='Netscape') ? document.getElementById(idbtn) : document.all[idbtn];

	box.className = (btn.innerHTML=='Show') ? 'box_content_show' : 'box_content_hide';
	
	btn.innerHTML = (btn.innerHTML=='Show') ? 'Hide' : 'Show';
}

function getValue(idObj){
	return (navigator.appName=='Netscape') ? document.getElementById(idObj).value : document.all[idObj].value;
}

function getObject(idObj){
	return (navigator.appName=='Netscape') ? document.getElementById(idObj) : document.all[idObj];
}

function shDiv(idDiv, className){
	getObject(idDiv).className = className;
}

function pageWidth(){
	return window.innerWidth != null? window.innerWidth: document.body != null? document.body.clientWidth:null;
}

function pageHeight(){
	return window.innerHeight != null? window.innerHeight: document.body != null? document.body.clientHeight:null;
}

function isFirefox(){
	if(navigator.userAgent.indexOf("Firefox")!=-1)
		return true;
	if (navigator.appVersion.indexOf("MSIE")!=-1)
		return false;
}