var dateFormat = 'dd/mm/yyyy';
var datePlaceHolder = 'dd/mm/yyyy';


function string_right(n) {
	if (n<=0) {
	   return '';
	}
	else if (n>this.length) {
	   return this;
	}
	else {
	   return this.substring(this.length, this.length - n);
	}
}

String.prototype.right = string_right;


function AlphaNumericsOnly(Obj,UpperCase) {
	var newValue = '';
	if(Obj!=null) {
		newValue=Obj.value;
		if(newValue!='') {
			if (UpperCase) {
				newValue = newValue.toUpperCase();
			}
			var re = new RegExp('[^0-9A-Za-z]','ig');
			newValue = newValue.replace(re,'');
			Obj.value=newValue;
		}
	}
	if(event && event.keyCode==9) {
		Obj.select();
	}
}

function NumericsOnly(Obj)
{
	if ((window.event.keyCode < 48 || window.event.keyCode > 57) && window.event.keyCode != 46) {
		window.event.keyCode = 0;
		window.event.returnValue = false;
	}
	
   /*if(Obj!=null) {
		var y=Obj.value;
		if(y!='') {
			Obj.value=Obj.value;
		}
	}*/
	
	if(event && event.keyCode==9) {
		document.getElementById(x).select();
	}
}	

function UpperCase(x)
{
	var y=document.getElementById(x).value;
	if(y!='') {
		document.getElementById(x).value=y.toUpperCase();
	}
	if(event && event.keyCode==9) {
		document.getElementById(x).select();
	}
}


function DateFormat(evt,Obj) {

	if (!evt) {
		evt = window.event;
	}

	var Day, Month, Year, toFind
	var arrValue = new Array();

	//handle focus if arrow key pressed
	
	switch(evt.keyCode) {
		case 39://right arrow
		case 38:// up arrow
		case 37://left arrow
		case 40://down arrow
			return;
			break;			
	}
	
	//keys to exclude
	if(evt.keyCode != 8 && evt.keyCode != 46) {			//8=backspace //46=delete
		arrValue = Obj.value.split('/');
		
		switch(dateFormat) {
			case "mm/dd/yyyy":
				maxdigs1 = 12;
				maxdigs2 = 31;
				break;
				
			case "dd/mm/yyyy":
				maxdigs1 = 31;
				maxdigs2 = 12;
				break;
				
			case "dd/mm/yy":
				maxdigs1 = 31;
				maxdigs2 = 12;
				break;
		}
		
		switch(Obj.value.length) {
			case 0:
				Obj.value = datePlaceHolder;
				toFind = datePlaceHolder;
				break;

			case 1:
				if(parseFloat(Obj.value) > maxdigs1.toString().substr(0,1)) {
					Digs = '0' + Obj.value;
					toFind = datePlaceHolder.right(datePlaceHolder.length - 3);
				} else {
					Digs = Obj.value + datePlaceHolder.substr(0,1);
					toFind = datePlaceHolder.right(datePlaceHolder.length - 1);
				}
				Obj.value = Digs + datePlaceHolder.right(datePlaceHolder.length - 2);
				break;

			case 2:
				if(Obj.value.indexOf('/') > 0) {
					Obj.value = '0' + Obj.value.substr(0,1)
				}
				if(parseFloat(Obj.value) > maxdigs1) {
					Day = Obj.value + datePlaceHolder.substr(0,1);
					Obj.value = Obj.value.substr(0,1) + datePlaceHolder.right(datePlaceHolder.length - 1);
					toFind = datePlaceHolder.right(datePlaceHolder.length - 1);
				}
				else {
					Obj.value = Obj.value + datePlaceHolder.right(datePlaceHolder.length - 2);
					toFind = datePlaceHolder.right(datePlaceHolder.length - 3);
				}
				break;

			case 4:
				if(parseFloat(arrValue[1]) > maxdigs2.toString().substr(0,1) && parseFloat(arrValue[1]) < maxdigs2 + 1)	{
					arrValue[1] = '0' + arrValue[1];

					if(parseFloat(arrValue[1]) > maxdigs2) {
						arrValue[1] = substr(datePlaceHolder,3,2);
						toFind = datePlaceHolder.right(datePlaceHolder.length - 3);
					}
					else {
						toFind = datePlaceHolder.right(datePlaceHolder.length - 6);
					}
				}
				else {
					if(parseFloat(arrValue[1]) > maxdigs2) {
						arrValue[1] = substr(datePlaceHolder,3,2);
						toFind = datePlaceHolder.right(datePlaceHolder.length - 3);
					}
					else {
						arrValue[1] += datePlaceHolder.substr(4,1);
						toFind = datePlaceHolder.right(datePlaceHolder.length - 4);
					}
				}
				
				Obj.value = arrValue[0] + '/' + arrValue[1] + datePlaceHolder.right(datePlaceHolder.length - 5);
				break;

			case 5:
				if(arrValue[1].length == 1) {
					arrValue[1] = '0' + arrValue[1];
				}
				if(parseFloat(arrValue[1]) > maxdigs2) {
					arrValue[1] = datePlaceHolder.substr(4,2);
					toFind = datePlaceHolder.right(datePlaceHolder.length - 3);
				} else {
					toFind = datePlaceHolder.right(datePlaceHolder.length - 6);
				}
				Obj.value = arrValue[0] + '/' + arrValue[1] + datePlaceHolder.right(datePlaceHolder.length - 5);
				break;

			case 7:
				toFind = datePlaceHolder.right(datePlaceHolder.length - 7);
				Obj.value = arrValue[0] + '/' + arrValue[1] + '/' + arrValue[2] + datePlaceHolder.right(datePlaceHolder.length - 7);
				break;

			case 8:
				toFind = datePlaceHolder.right(datePlaceHolder.length - 8);
				Obj.value = arrValue[0] + '/' + arrValue[1] + '/' + arrValue[2] + datePlaceHolder.right(datePlaceHolder.length - 8);
				break;

			case 9:
				toFind = datePlaceHolder.right(datePlaceHolder.length - 9);
				Obj.value = arrValue[0] + '/' + arrValue[1] + '/' + arrValue[2] + datePlaceHolder.right(datePlaceHolder.length - 9);
				break;

			case 10:
				toFind = '';
				break;

			case 11:
				toFind = '';
				Obj.value = Obj.value.substr(0,10);
				break;
		}
		
		if(toFind != '') {
			
			if (Obj.createTextRange) {			
				var Sel = Obj.createTextRange();
				Sel.findText(toFind);
				Sel.select();
			}
			else if (Obj.setSelectionRange) {
				start = Obj.value.indexOf(toFind)
				var Sel = Obj.setSelectionRange(start,start+toFind.length);
			}


			Obj.title = '';
		}
	}
	GetDateTooltip(Obj);
}


function GetDateTooltip(Obj)
{
	arrValue = Obj.value.split("/")
	Day = parseFloat(arrValue[0])
	Month = parseFloat(arrValue[1]) - 1
	Year = parseFloat("20" + arrValue[2])
					
	var tDate = new Date(Year, Month, Day)
	if(tDate != "NaN" && "" + tDate != "undefined" && Month > -1 && ("" + Year).length == 4)
	{
		var dDate = "" + tDate
		var Title = ""
		if(dDate.substr(0,3) == "NaN")
		{
			Obj.title = ""
		}
		else
		{
			switch(dDate.substr(0,3))
			{
				case "Mon":
					Title = ""
					break;
				case "Tue":
					Title = ""
					break;
				case "Wed":
					Title = ""
					break;
				case "Thu":
					Title = ""
					break;
				case "Fri":
					Title = ""
					break;
				case "Sat":
					Title = ""
					break;
				case "Sun":
					Title = ""
					break;
			}
			Obj.title = Title
		}
	}
}




function toDBDate(strDate) {
	
	dateParts = strDate.split('/');

	if (dateParts.length!=3) {
		return '';
	}
	
	switch(dateFormat) {
		case 'mm/dd/yyyy': {
			
			theDate = dateParts[1];
			theMonth = dateParts[0];
			theYear = dateParts[2];
			break;
		}
		case 'dd/mm/yyyy': {
			
			theDate = dateParts[0];
			theMonth = dateParts[1];
			theYear = dateParts[2];
			break;
		}
		case 'dd/mm/yy': {
			
			theDate = dateParts[0];
			theMonth = dateParts[1];
			theYear = '20' + dateParts[2];
			break;
		}
	}
	return ('' + theYear + theMonth + theDate);
}


function fromDBDate(strDate) {
	theDate = strDate.substr(6,2);
	theMonth = strDate.substr(4,2);
	theYear = strDate.substr(0,4);
	
	switch(dateFormat) {
		case 'mm/dd/yyyy': {
			return theMonth + '/' + theDate + '/' + theYear;
			break;
		}
		case 'dd/mm/yyyy': {
			return theDate + '/' + theMonth + '/' + theYear;
			break;
		}
		case 'dd/mm/yy': {
			return theDate + '/' + theMonth + '/' + theYear.substr(2,2);
			break;
		}
	}
}