/* author: Mike F Schulz */
/* Creation date: 13/11/2001 */
function containsChars(xvar){
	for (k=0;k<xvar.length;k++){
		if(isNaN(xvar.charAt(k))) return true;
	}
	return false;			
}
	
function containsDigits(xvar){
	for (k=0;k<xvar.length;k++){
		if(isNaN(xvar.charAt(k))) return true;
	}
	if(!isNaN(xvar) && xvar < 1) return true;
		return false;			
}
	
function isFloat(xvar){		
	for (k=0;k<xvar.length;k++){
		if(isNaN(xvar.charAt(k)) && xvar.charAt(k) != '.'){
			return false;
		}
	}
	return true;		
}	
	
function checkCellPostFix(el){
	if(el.value.length != 7) return false;
	for(k=0;k<el.value.length;k++){
		if(isNaN(el.value.charAt(k))) return false;
	}
	return true;
}		
		
function isWhitespace (s, msg){   
	var i;
	// whitespace characters
	var whitespace = " \t\n\r";
    // Is s empty?
    if (isEmpty(s)){
		alert(msg); 
		return true;
	}
    // Search through string's characters one by one
	// until we find a non-whitespace character.
    // When we do, return false; if we don't, return true.
    for (i = 0; i < s.length; i++){   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (whitespace.indexOf(c) == -1) return false;
    }
    // All characters are whitespace.
	alert(msg);
    return true;
}		
		
function isEmpty(s){   
	return ((s == null) || (s.length == 0));
}		
	
function isSignedFloat (s){
	if (isEmpty(s)) 
    	if (isSignedFloat.arguments.length == 1) return defaultEmptyOK;
       	else return (isSignedFloat.arguments[1] == true);
    else {
        var startPos = 0;
        var secondArg = false;
        if (isSignedFloat.arguments.length > 1)
            secondArg = isSignedFloat.arguments[1];
        // skip leading + or -
        if ( (s.charAt(0) == "-") || (s.charAt(0) == "+") )
           startPos = 1;    
        return (isFloat(s.substring(startPos, s.length), secondArg))
    }
}	
								
function valEmail(el) {
	var invalidChars = " /:,;";
 	if (el.value == "") {
   		alert("Please enter your email address.");
		el.focus();
		return (true);
	}
	for (i=0; i<invalidChars.length; i++) {
		badChar = invalidChars.charAt(i);
    	if (el.value.indexOf(badChar,0) != -1) {
		   	alert("Your email address contains an invalid character, please correct it.");
			el.focus();
			return (true);
	    }
	}
	atPos = el.value.indexOf("@",1);
	if (atPos == -1) {
	   	alert("Your email address must contain an @ character.");
		el.focus();
		return (true);
	}
	if (el.value.indexOf("@",atPos+1) != -1) {
	   	alert("Your email address must have letters before the @ character.");
		el.focus();
		return (true);
	}
	periodPos = el.value.indexOf(".",atPos);
	if (periodPos == -1) {
	   	alert("Your email address must contain a . character.");
		el.focus();
		return (true);
	}
	if (periodPos+3 > el.value.length) {
	   	alert("Your email address must have letters after the . character.");
		el.focus();
		return (true);
	}
	return (false);
}

function launchwin(winurl,winname,winfeatures){
	newwin=window.open([winurl],[winname],[winfeatures]);
	if(newwin.focus) setTimeout('newwin.focus();',250);
}

function confirmDel(theStr, msg){
	if (confirm(msg)){
		this.location.href=(theStr);
	}
}
function clearImage(frmField, ImageName){
	document.all[frmField].value = "";
	var img = document.images["img_"+frmField];
	img.src = '/media/user/' + ImageName;		
}

function clearDoc(frmField, ImageName){
	document.all[frmField].value = "";
	var img = document.images["img_"+frmField];
	img.src = '/media/user/' + ImageName;
	document.all["docname"].innerText = "";		
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function launchwin(winurl,winname,winfeatures){
	newwin=window.open([winurl],[winname],[winfeatures]);
	if(newwin.focus) setTimeout('newwin.focus();',250);
}
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}
//-->