/*  ****** Attributes to be given for elements are the following ****** */

/*
required = form field is required 
validate = type of validation required { "email" or "int" or "float" or "text" or "checked" or "date" or "select" or "radio" or "total","compare"}

message = message to be displayed "error message to alert" 
group= assign  a group for radio buttons or check boxes 

Note:

give validate="total" for total amount validation.
if validate="compare"  then give compareid attribute to that element.
eg:
<input type="text" id="txt_RetypeEmail" required="yes" validate="compare" compareid="txt_email" message="Please retype the correct E-mail." />
*/




function ValidateForm(form)
{			
		var error = "";
		//for each form element
		for(var i=0; i<form.length; i++){
			var element = form[i];
			var nextelement = form[i+1];
			//if required
			if(element.getAttribute("required") == "yes"){
				//if form element if empty
				if(!valid(element.getAttribute("validate"),element,nextelement))
					error += element.getAttribute("message") + "\r\n";	
			}
		}
		if(error != ""){
			alert(error);
			document.formSubmit = false;
		}
		else
			document.formSubmit = true;		
				
}	

function valid(type,element,nextelement)
{
		if(type=="total")
		{		
			var objRegExp  =  /(^-?\d\d*\.\d*$)|(^-?\d\d*$)|(^-?\.\d\d*$)/ ;
			if(objRegExp.test(element.value)==false || element.value=='')
			{
				element.value=0;				
			}
		}
		else if(type!="select" && !IsNotEmpty(element.value))
			return false;		
			
		switch(type){
			
			case "email":	
				if(!IsEmail(element.value))
					return false;
				break;
			case "int":
			    if(!IsInteger(element.value))
					return false;
				break;
			case "checked":
				if(!ValidateGroup(element.checked,element,nextelement))
					return false;			
				break;
			case "radio":
				if(!ValidateGroup(element.checked,element,nextelement))
					return false;			
				break;
			case "date":				
				if(!IsDate(element.value))
					return false;
				break;
			case "date2":				
				if(!IsDate2(element.value))
					return false;
				break;
			case "select":				
				if(!IsSelected(element))
					return false;
				break;
			case "float":
				if(!IsNumeric(element.value))
					return false;
				break;
			case "total":
				if(!ValidateTotalSum(element,nextelement))
					return false;
				break;
			case "compare":
				if(!Compare(element,element.getAttribute("compareid")))
					return false;
				break;
			case "compare_select":
				if(!CompareSelect(element,element.getAttribute("compareid")))
					return false;
				break;
			case "greater":
				if(!Greaterthan(element,element.getAttribute("compareamt")))
					return false;
				break;
			default://string
				break;
		}
		return true;
}

function Compare(element,compareid)
{
	var comp=document.getElementById(compareid);
	if(element.value!=comp.value)
	{
		return false;
	}
	return true;
}
function CompareSelect(element,compareid)
{
	var comp=document.getElementById(compareid);
	if (element.value != '0' || comp.value != '0')
	{
		return false;
	}
	else if (element.value == '0' && comp.value == '0')
	{
		return true;
	}
}

function Greaterthan(element,compareamt)
{
	var div1 = document.getElementById("qty_cash_in");
	alert (div1);
	var comp = div1.getAttribute("compareamt");
	if(element.value > comp.value)
	{
		return false;
	}
	return true;
}

var checkFlag=false;

function  ValidateGroup(val,element,nextelement)
{		
	
	 if(element.getAttribute("group")== nextelement.getAttribute("group"))
	 {
		 if(val==true || nextelement.checked==true)
		 {
			checkFlag=true; 
			return true;
		 }
	 }	 
	 else
	 {	
		 if(checkFlag==true)
		 {
			checkFlag=false ; 
			return true;
		 }
		 else
		 {
			 return false;
		 }
	 }							
	return true;
}

var amtFlag=false;

function  ValidateTotalSum(element,nextelement)
{		
	 
	 if(element.getAttribute("group")== nextelement.getAttribute("group"))
	 {
		  var value1=element.value;
		  var value2=nextelement.value;		  
		  var objRegExp  =  /(^-?\d\d*\.\d*$)|(^-?\d\d*$)|(^-?\.\d\d*$)/ ;
		  
		  if((objRegExp.test(value1)==true && value1>0) || (objRegExp.test(value2)==true && value2>0))
		  {		 				
				amtFlag=true;
				return true;
		  }				
	 }	 
	 else
	 {	
		 if(amtFlag==true)
		 {			
			amtFlag=false ; 
			return true;
		 }
		 else
		 {			
			 return false;
		 }
	 }
	 
	return true;
}

function IsNotEmpty(val)
{    
	var strTemp = val;
	var re = /\s/g; //Match any white space including space, tab, form-feed, etc. 
	RegExp.multiline = true; // IE support
	var str = strTemp.replace(re, "");
	if (str.length == 0)
	{		
		return false;
	} 
	return true;
   
}

function IsEmail(val)
{
	var strValue=val ;
	var str =Trim(strValue);	
	
	var objRegExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;

	if(objRegExp.test(strValue)==false)
	{			 
		 return false;
	}	
	return true;

}

function Trim(string)
{
	while (string.substring(0,1) == ' ')
	{
		string = string.substring(1, string.length);
	}
	
	while (string.substring(string.length-1, string.length) == ' ')
	{
		string = string.substring(0,string.length-1);
	}
	return string;
}

function IsInteger(val)
{

  var strValue=val;
  var objRegExp  = /(^\d\d*$)/;
  // var objRegExp  = /(^-\d\d*$)/;

  //check for integer characters
  var ret= objRegExp.test(strValue);
  if(ret==false)
  {		
	return false;
  }
  return true;
}

function  IsNumeric(val)
{
	  var txtValue=val;
	  var objRegExp  =  /(^-?\d\d*\.\d*$)|(^-?\d\d*$)|(^-?\.\d\d*$)/ ;

	  //check for numeric characters
	  var ret= objRegExp.test(txtValue);
		
	  if(ret==false || txtValue<=0)
	  {		  	
	    
			return false;
	  }
	  return true;
	
}

function IsDate(val)
{   
	//alert(val)	;
	var strDate=val;
  var validformat=/^\d{1,2}\/\d{1,2}\/\d{4}$/  ;//Basic check for format validity
  //alert(validformat.test(val));
  if (validformat.test(val)==false)
  {	
	  return false;
  }
  else
  {     
	   
	  // alert(strDate);
	   var today=new Date();
	   var dayfield=strDate.split("/")[1];
	   var monthfield=strDate.split("/")[0];
	   var yearfield=strDate.split("/")[2];
	   var dayobj = new Date(monthfield+"/"+dayfield+"/"+yearfield);
	   var xDate2 = new Date(today.getMonth()+1+"/"+today.getDate()+"/"+(today.getYear()));
	   if (yearfield<1900|| (dayobj.getMonth()!=monthfield-1)||(dayobj.getDate()!=dayfield)||(dayobj.getFullYear()!=yearfield))
	   {			 
			 return false;
	   }
	   if (dayobj<xDate2)
	   {
			 return false;
	   }

  }
  return true;
}

function IsDate2(val)
{   
	//alert(val)	;
	var strDate=val;
  var validformat=/^\d{1,2}\/\d{1,2}\/\d{4}$/  ;//Basic check for format validity
  //alert(validformat.test(val));
  if (validformat.test(val)==false)
  {	
	  return false;
  }
  else
  {     
	   
	  // alert(strDate);
	   var today=new Date();
	   var dayfield=strDate.split("/")[1];
	   var monthfield=strDate.split("/")[0];
	   var yearfield=strDate.split("/")[2];
	   var dayobj2 = new Date(monthfield+"/"+dayfield+"/"+yearfield);
	   var newDate = (today.getDate()+14);
	   var xDate3 = new Date(today.getMonth()+1+"/"+newDate+"/"+(today.getYear()));
	   if (yearfield<1900|| (dayobj2.getMonth()!=monthfield-1)||(dayobj2.getDate()!=dayfield)||(dayobj2.getFullYear()!=yearfield))
	   {			 
			 return false;
	   }
	   if (dayobj2 < xDate3)
	   {
			 return false;
	   }

  }
  return true;
}

function  IsSelected(element)
{
	  if(element.selectedIndex==0)
	  {
	    return false;
	  }
	  return true;
}

function calcJulian(isDate){

	gregDate = new Date(isDate);
	year = gregDate.getFullYear(); 
	month = gregDate.getMonth()+1; 
	day = gregDate.getDate();
	A = Math.floor((7*(year+Math.floor((month+9)/12)))/4);
	B = day+Math.floor((275*month)/9)
	isJulian = (367*year)-A+B+1721014;
	return isJulian; 
}