function clearifdefault (input,defaultval) {
	if (input.value == defaultval){
		input.value = ''
	}
}

function defaultifclear (input,defaultval) {
	if (input.value == ''){
		input.value = defaultval
	}
}

function externalLinks() { 
 if (!document.getElementsByTagName) return; 
 var anchors = document.getElementsByTagName("a"); 
 for (var i=0; i<anchors.length; i++) { 
   var anchor = anchors[i]; 
   if (anchor.getAttribute("href") &&  anchor.className == "external") 
	 anchor.target = "_blank"; 
 } 
} 
window.onload = externalLinks;
window.name = "main";
function NewWindow(mypage, w, h) {
    var win = null;
    LeftPosition = (screen.width) ? (screen.width - w) / 2 : 100;
    TopPosition = (screen.height) ? (screen.height - h) / 2 : 100;
    settings = 'width=' + w + ',height=' + h + ',top=' + TopPosition + ',left=' + LeftPosition + ',scrollbars=no,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
    win = window.open(mypage, '_blank', settings);
}