function doPopup(URL, WIDTH, HEIGHT) {
	url = URL;
	width = WIDTH;  // width of window in pixels
	height = HEIGHT; // height of window in pixels
	windowprops = "left=50,top=50,width=" + WIDTH + ",height=" + HEIGHT + "toolbar=no," + "location=no," + "directories=no," + "status=no," + "menubar=no," + "scrollbars=no," + "resizable=no,";
	preview = document.open(URL, "_blank", windowprops);
}

String.prototype.trim = function(){ return this.replace(/(^\s+)|\s+$/g,"")}
String.prototype.ltrim = function(){ return this.replace(/(^\s+)/g,"")}
String.prototype.rtrim = function(){ return this.replace(/\s+$/g,"")}

function ShowPopup(WindowURL,WindowWidth,WindowHeight)
{
	WindowFeatures = "left=100,top=70,width=" + WindowWidth + ",height=" + WindowHeight + "toolbar=no," + "location=no," + "directories=no," + "status=no," + "menubar=no," + "scrollbars=yes," + "resizable=no,";

	if (typeof(NewWindow) == "object")
	if ( typeof(NewWindow.top) == "object")
		NewWindow.close();

	NewWindow = window.open( WindowURL , 'WindowPopup', WindowFeatures);
	NewWindow.focus();
	return(false);

}


	function ltrim(s) { 
		return s.replace( /^\s*/, "" );
	} 
	
	function rtrim(s) { 
		return s.replace( /\s*$/, "" ); 
	} 
	
	function trim(s) { 
		return rtrim(ltrim(s)); 
	}

	// DATE FUNCTIONS
	function isInteger(s){
		var i;
	    for (i = 0; i < s.length; i++){   
	        // Check that current character is number.
	        var c = s.charAt(i);
	        if (((c < "0") || (c > "9"))) return false;
	    }
	    // All characters are numbers.
	    return true;
	}
	
	function stripCharsInBag(s, bag){
		var i;
	    var returnString = "";
	    // Search through string's characters one by one.
	    // If character is not in bag, append to returnString.
	    for (i = 0; i < s.length; i++){   
	        var c = s.charAt(i);
	        if (bag.indexOf(c) == -1) returnString += c;
	    }
	    return returnString;
	}
	
	function daysInFebruary (year){
		// February has 29 days in any year evenly divisible by four,
	    // EXCEPT for centurial years which are not also divisible by 400.
	    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
	}
	function DaysArray(n) {
		for (var i = 1; i <= n; i++) {
			this[i] = 31
			if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
			if (i==2) {this[i] = 29}
	   } 
	   return this
	}

	function transferDate(dtStr){
		var dtCh = "/";
	
		var daysInMonth = DaysArray(12)
		var pos1 = dtStr.indexOf(dtCh)
		var pos2 = dtStr.indexOf(dtCh, pos1 + 1)
		var strDay = dtStr.substring(0, pos1)
		var strMonth = dtStr.substring(pos1 + 1, pos2)
		var strYear = dtStr.substring(pos2 + 1)

		return strYear + '/' + strMonth + '/' + strDay;
	}

function isDate(dtStr){
	var dtCh= "/";
	var minYear = 1900;
	var maxYear = 2100;	

	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)

	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		return false
	}
	return true
}

function gid(e) {
	return document.getElementById(e);
}