var ua = navigator.userAgent;

var os_win = ( navigator.appVersion.indexOf( 'Win' ) != -1 );
var os_mac = ( navigator.appVersion.indexOf( 'Mac' ) != -1 );
var os_lin = ( ua.indexOf( 'Linux' ) != -1 );

var is_opera = ( ua.indexOf( 'Opera' ) != -1 );
var is_konq  = ( ua.indexOf( 'Konqueror' ) != -1 );
var is_saf   = ( ua.indexOf( 'Safari' ) != -1 );
var is_moz   = ( ua.indexOf( 'Gecko' ) != -1 && !is_saf && !is_konq);
var is_ie    = ( document.all && !is_opera );
var is_ie4   = ( is_ie && !document.getElementById );

var is_ie5x    = ( document.all && document.getElementById );
var os_ie5mac  = ( os_mac && is_ie5x );
var os_ie5xwin = ( os_win && is_ie5x );

function changeText(obgName, text, state) {
	if(text=="") return false;
	var obj = ((obgName.value!=null) ? obgName : document.getElementById(obgName));
	if(state==1) {
		if(obj.value==text) obj.value='';
	} else {
		if(obj.value=='') obj.value=text;
	}
}
function absolutePosition(el) {
	if(el.style.position=='absolute') {
		var r = { x: parseInt(el.style.left), y: parseInt(el.style.top) };
	} else {
		var r = { x: el.offsetLeft, y: el.offsetTop };
		if (el.offsetParent) {
		  var tmp = absolutePosition(el.offsetParent);
		  r.x += tmp.x;
		  r.y += tmp.y;
		}
	}
	return r;
};
function ckeckAlias(objText, objImage, objLabel, blankText, findText, root) {
	if((AliasString.indexOf(objText.value+',')>0) || (objText.value=='' && blankText!='')) {
		objImage.src = root+"images/off.jpg";
		if(objText.value=='')
			objLabel.innerHTML = blankText;
		else
			objLabel.innerHTML = findText;
		return false;
	} else {
		objImage.src = root+"images/on.jpg";
		objLabel.innerHTML = "";
		return true;
	}
}
function showPopup(page,target,w,h,c,s,m,tol,r,loc) {
	if(c=='yes') {
		l = parseInt(screen.width/2-w/2);
		t = parseInt(screen.height/2-h/2);
		window.open(page, target, 'width='+w+'px,height='+h+'px,status='+s+',menubar='+m+',toolbar='+tol+',resizable='+r+',location='+loc+',help=no,left='+l+',top='+t);
	} else {
		window.open(page, target, 'width='+w+'px,height='+h+'px,status='+s+',menubar='+m+',toolbar='+tol+',resizable='+r+',location='+loc+',help=no');
	}
}