function showElement(layerName) {
	if (document.getElementById) {
		var targetElement = document.getElementById(layerName);
		targetElement.className='DisplayOn';
	}
	return true;
}

function hideElement(layerName) {
	if (document.getElementById) {
		var targetElement = document.getElementById(layerName);
		targetElement.className='DisplayOff';
	}
	return true;
}

function showElementNow(layerName) {
	if (document.getElementById) {
		var targetElement = document.getElementById(layerName);
		targetElement.style.display = 'block';
	}
	return true;
}

function hideElementNow(layerName) {
	if (document.getElementById) {
		var targetElement = document.getElementById(layerName);
		targetElement.style.display = 'none';
	}
	return true;
}



function newInputValue(inputName,inputValue) {
	if (document.getElementById) {
		var targetElement = document.getElementById(inputName);
		targetElement.value = inputValue;
	}
}

function newInputClass(inputName,inputClass) {
	if (document.getElementById) {
		var targetElement = document.getElementById(inputName);
		targetElement.className = inputClass;
	}
}

/* popup windows BEGIN */
function popupWindow(url,wwidth,wheight) {
	window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width='+wwidth+',height='+wheight+',screenX=150,screenY=150,top=50,left=50')
}
/* popup windows END */


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