dom = (document.getElementById)? true:false
ie4 = (document.all)? true:false
ns4 = (document.layers)? true:false

function preload(imgObj,imgSrc) {
	if (document.images) {
		eval(imgObj+' = new Image()');
		eval(imgObj+'.src = "'+imgSrc+'"');
	}
}

function changeImage(imgName,imgObj,layer) {
	if (document.images) {
		if (document.layers && layer!=null) {	
			eval('document.'+layer+'.document.images["'+imgName+'"].src = '+imgObj+'.src');
		}
		else 
		{	
			document.images[imgName].src = eval(imgObj+".src");
		}
	}
}

function changeLink(linkName,imgObj) {
	if (navigator.appName == 'Microsoft Internet Explorer') {
		document.links(linkName).href = eval(imgObj+".src");
	}
	else
	{
		document.links[linkName].href = eval(imgObj+".src");	
	}
}

function redirectFormURL(formName, fID, sectionURL) {
	urlName = formName.options[fID].value
	if (urlName != ""){
		document.location.href='/' + sectionURL + urlName + '/';
	}
}