// [dFilter] - A Numerical Input Mask for JavaScript
// Written By Dwayne Forehand - March 27th, 2003
// Please reuse & redistribute while keeping this notice.

var dFilterStep

function dFilterStrip (dFilterTemp, dFilterMask)
{
    dFilterMask = replace(dFilterMask,'#','');
    for (dFilterStep = 0; dFilterStep < dFilterMask.length++; dFilterStep++)
		{
		    dFilterTemp = replace(dFilterTemp,dFilterMask.substring(dFilterStep,dFilterStep+1),'');
		}
		return dFilterTemp;
}

function dFilterMax (dFilterMask)
{
 		dFilterTemp = dFilterMask;
    for (dFilterStep = 0; dFilterStep < (dFilterMask.length+1); dFilterStep++)
		{
		 		if (dFilterMask.charAt(dFilterStep)!='#')
				{
		        dFilterTemp = replace(dFilterTemp,dFilterMask.charAt(dFilterStep),'');
				}
		}
		return dFilterTemp.length;
}

function dFilter (key, textbox, dFilterMask)
{
	if(key > 57)
		key = key - 48;

		dFilterNum = dFilterStrip(textbox.value, dFilterMask);
		
		if (key==9)
		{
		    return true;
		}
		else if (key==8&&dFilterNum.length!=0)
		{
	 	 	dFilterNum = dFilterNum.substring(0,dFilterNum.length-1);
		}
 	  else if ( ((key>47&&key<58)||(key>95&&key<106)) && dFilterNum.length<dFilterMax(dFilterMask) )
		{
        dFilterNum=dFilterNum+String.fromCharCode(key);
		}

		var dFilterFinal='';
    for (dFilterStep = 0; dFilterStep < dFilterMask.length; dFilterStep++)
		{
        if (dFilterMask.charAt(dFilterStep)=='#')
				{
					  if (dFilterNum.length!=0)
					  {
				        dFilterFinal = dFilterFinal + dFilterNum.charAt(0);
					      dFilterNum = dFilterNum.substring(1,dFilterNum.length);
					  }
				    else
				    {
				        dFilterFinal = dFilterFinal + "";
				    }
				}
		 		else if (dFilterMask.charAt(dFilterStep)!='#')
				{
				    dFilterFinal = dFilterFinal + dFilterMask.charAt(dFilterStep); 			
				}
//		    dFilterTemp = replace(dFilterTemp,dFilterMask.substring(dFilterStep,dFilterStep+1),'');
		}


		textbox.value = dFilterFinal;
		textbox.blur();
    return false;
}

function replace(fullString,text,by) {
// Replaces text with by in string
    var strLength = fullString.length, txtLength = text.length;
    if ((strLength == 0) || (txtLength == 0)) return fullString;

    var i = fullString.indexOf(text);
    if ((!i) && (text != fullString.substring(0,txtLength))) return fullString;
    if (i == -1) return fullString;

    var newstr = fullString.substring(0,i) + by;

    if (i+txtLength < strLength)
        newstr += replace(fullString.substring(i+txtLength,strLength),text,by);

    return newstr;
}

function numbersonly(evt) {
	var charCode = (evt.which) ? evt.which : event.keyCode
	if (charCode > 31 && (charCode < 48 || charCode > 57))
        	return false;
	return true;
}

var isNav4 = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) == 4)
var isNav4Min = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 4)
var isIE4Min = (navigator.appName.indexOf("Microsoft") != -1 && parseInt(navigator.appVersion) >= 4)
var isFF = (navigator.userAgent.indexOf("Firefox")!=-1)

function getSel() {
	if (isIE4Min) {
		if (document.selection) {
			selec = document.selection.createRange().text;
        		//event.cancelBubble = true;
        	}
	} else if(isNav4Min) {
	      	selec = document.getSelection(); 
	} else if(isFF) {
		alert("TEST");

//		selec = window.getSelection();
	}
	return selec;
}

if (isNav4) {
    document.captureEvents(Event.MOUSEUP)
}