function doOver(name,img) {
	if (document.images)
		document.images[name].src = '/public/images/' + img;
}

function doOut(name,img) {
	if (document.images)
		document.images[name].src = '/public/images/' + img;
}

function rover(item) {
		item.style.background="#ededed";
}

function rout(item) {
		item.style.background="transparent";
}

function goURL(url) {
	window.location.href = url;
}

function pop(url,w,h) {
	var popWin = window.open(url,'','width='+w+',height='+h+',location=no,menubar=no,scrollbars=no,toolbar=no,resizable=no');
	popWin.focus();
}

function validEmail(addr){
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	var matchArray=addr.match(emailPat)
	
	if (matchArray==null) {
		//alert("Please enter a valid email address (check @ and .'s)")
		return false
	}
	
	var user=matchArray[1]
	var domain=matchArray[2]
	
	if (user.match(userPat)==null) {
		//alert("The username doesn't seem to be valid.")
		return false
	}
	
	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				//alert("Destination IP address is invalid!")
				return false
			}
		}
		return true
	}
	
	var domainArray=domain.match(domainPat)
	
	if (domainArray==null) {
		//alert("The domain name doesn't seem to be valid.")
		return false
	}
	
	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3) {
		//alert("The address must end in a three-letter domain, or two letter country.")
		return false
	}
	if (len<2) {
		//alert("This address is missing a hostname!")
		return false
	}
	return true;
}

function validNum(no) {
	var pattern = "0123456789+-)(., ";
	var i = 0;
	
	do {
		var pos = 0;
		for (var j=0;j<pattern.length;j++)
			if (no.charAt(i)==pattern.charAt(j))
				pos = 1;
		i++;
	}
	while (pos==1 && i<no.length)
	
	if (pos==0) return false;
	return true;
}