/* 
	File Name : Common.js
	Author : Kalyan Krishna.
	Date : 9/11/2000
	Revisions : 20/11/2000 : 'fnIsVal' fixed 
			    30/01/2000 : Kapil
					Commented out checking for first char alphanumeric in IsValidAlpha function.
	Purpose : Common JavaScript Validation code. 
*/

/////////////////////////////////////////////////////////////////////////////////////////////
// General declarations
/////////////////////////////////////////////////////////////////////////////////////////////
//function to append zeros to a number after decimal point to 2 places
function fnRound(num1)
{
	var inum1, inum2;
	inum2 = Math.round(num1);
	inum = ((inum2-num1)*100);
	//alert(inum);
	if (inum > 0)
	{
		if ((inum % 10) == 0) 
		{
			return(num1 + "0");
		}
		else
		{
			return(num1);
		}
	}
	else
	{
		return(num1 + ".00");
	}

}
//
function mouseover(){
event.srcElement.style.cursor="hand";
}

// Function to remove whitespaces
function fnTrim(varCtrl)
{
	var Field
	Field = varCtrl
	if (!Field) // Validate the Form element
	{
		alert(" Function : Element is not Defined !");
		return(-1);
	}
	var y=Field.value.length;
	var retval=Field.value;
	var m=0;
	while(m < y) //Start removing white spaces from left side
	{  
		if ((retval.substring(0,1)==" ")||(retval.substring(0,1)=="	"))
        	{ 
			retval=Field.value.substring(m+1,y); //remove left most white char
        	} 
		else 
		{ 
			break;
		}
		m++;
  	}
	y=retval.length;
  	m=y;
  	while (m >= 0) //Start removing white spaces from right side
  	{  
		if ((retval.substring(m-1,m)==" ")||(retval.substring(m-1,m)=="	"))
     		{  
			retval=retval.substring(0,m-1); //remove right most white char
	        } 
		else 
		{ 
			break;  //first non - white character encountered while 
			       //traversing from right to left. so break the loop
		}
     		m--;
  	}
  	return retval;
}


// Checks wheather any given text box contains null values
function fnIsTextNull(strMsg,varCtrl)
{
		if (varCtrl.value == "")
		{
		   var strErr;
		   strErr = strMsg + " cannot be left blank.";
		    alert(strErr);
		    varCtrl.select();
		    varCtrl.focus();
		    return false;		    
		}	
		
		return true;
}	

	
// Function to check whether the field have all alphanumeric characters or not
//	Character Set that can come under Alphanumeric  category are (A-Z), (a-z),.
//  Usage : fnIsValidAlpha("User Name",document.frmadm00c1.txtusername)

function fnIsValidAlpha(strMsg,varCtrl)          
{
		var Field
		Field = varCtrl
		
		//if (!Field) // Validate the Form element
		//{
		//	alert (" Element is not Defined !");
		//	return(-1);
		//}

		Field.value = fnTrim(Field); // remove spaces from both side of the string/number
	    var length = Field.value.length;
	    
	    //if (!fnIsCharacter(Field))
	    //{
	    //	alert("First letter should be an alphabet in " + strMsg)
	    //	varCtrl.select();
		//    varCtrl.focus();
	    //	return false;
	    //}		
	    
	    for (var ct = 0; ct <= (Field.value.length - 1); ct++)
	    {
			var Validchar = Field.value.substring(ct,ct+1);  // Check one Character at a time.
			var character = 0;  // Set character as invalid alphanumeric value.
			
			if (((Validchar >= "A") && (Validchar <= "Z")) || ((Validchar >= "a") && (Validchar <= "z")) || ((Validchar >= "0") && (Validchar <= "9")) || (Validchar == ".") || (Validchar == " ") || (Validchar == "_") || (Validchar == "-"))
			{			
	       		character = 1; //valid character		  	
	       		}
			else
			{		
				character = 0; //Invalid character
				alert("Enter a valid " + strMsg + " [Valid character set A-Z,a-z,.,_,-,0-9 ]");
				varCtrl.select();
				varCtrl.focus();	
				return false;
			}
		  	
		  	
		    if (character == 0)// generate error message if not valid Character value.
	        {
				alert("Must have valid characters in " + strMsg);
				varCtrl.select();
				varCtrl.focus();
				return false; //If not valid character
		    }  
		}
		
	return true; //If valid character
}

//Function to check whether the first charcter of field is alphabet
// or not.
// Return true if character is an alphabet.
// Return true if character is not an alphabet.
// Usage : fnIsCharacter(document.frmadm001c1.txtname)

function fnIsCharacter(varCtrl)          
{
    	var character
		var Validchar = varCtrl.value.substring(0,1)  
		if (((Validchar >= "A") && (Validchar <= "Z")) || ((Validchar >= "a") && (Validchar <= "z")))
		{
			return true // Valid character      
	  	}
		else
		{
			return false //Invalid character
		}
}

function fnIsValidAlphaNumeric(strMsg,varCtrl)   // Not in use. But good for reference.       
{
	var a,b
	var Field
	Field = varCtrl
	
	//if (!Field) // Validate the Form element
	//{
	//	alert (" Element is not Defined !");
	//	return(-1);
	//}

	Field.value = fnTrim(Field); // remove spaces from both side of the string/number
    var length = Field.value.length;

    if (!fnIsCharacter(Field))
    {
    	alert("First letter should be an alphabet in " + strMsg)
    	return false;
    }	
    a ="0";	
    for (var inCounter = 0; inCounter <= (Field.value.length - 1); inCounter++)
    {
		var Validchar = Field.value.substring(inCounter,inCounter+1);  // Check one Character at a
							    // time
		var character = 0;  // Set character as invalid alphanumeric value
		
		if (((Validchar >= "A") && (Validchar <= "Z")) || ((Validchar >= "a") && (Validchar <= "z")) || ((Validchar >= "0") && (Validchar <= "9")) || (Validchar == "-") || (Validchar == "_") || (Validchar == "."))
		{		
       		character = 1; //valid character
       		b = a;
       		a = Validchar;

       		if ((a == b) && (a==".") && (b=="."))
       		{
       			alert("Please do not enter two dots (..) in " + strMsg);
       			return false;
       		}	
	  	}
		else
		{
		
			character = 0; //Invalid character
			alert("Must have valid characters in " + strMsg);
			
			return false;
		}
	  	
	  	
	    if (character == 0)// generate error message if not valid Character
				    // value
        {
			alert("Must have valid characters in " + strMsg);
			
			return false; //If not valid character
	    }  
	}
	
	return true; //If valid character
}

// End of fnIsValidAlphaNumeric


// Checks for existance of white spaces in any given string
function fnCheckWhiteSpaces(strMesg,varCtrl)
{
		var blnOk = true;		
		var stItemValue = varCtrl.value;
		var inItemLength = stItemValue.length;
		
		//alert (inItemLength);
		//alert (stItemValue);
		
		for (i = 0; i<=inItemLength; i++)
		{
			if (stItemValue.charAt(i) == " ")
			{ 
				blnOk = false
				break;
			}
			else
			{
				continue;
			}
		}
		if (blnOk == false)
		{
			alert('The value entered for ' + strMesg + ' contains spaces.' + strMesg + ' cannot contain spaces.');		
			varCtrl.focus();
			varCtrl.select();
			return(false);
			}
		else{
			return true;				
		}
}

// Function to check the maximum and minimum number of characters for any field...
function fnIsValidLength(strMsg,strVal,inMin,inMax)
{
	stItemValue = strVal.value;
	inItemLength = stItemValue.length;
	
	// Validate the control's minimum value.
	if (inItemLength < inMin) 
	{
		alert(strMsg + " cannot be of less than " + inMin + " characters.Please retry.");
		strVal.focus();
		strVal.select();
		return(false);
	}
	else if  (inItemLength > inMax) 	// Validate the control's maximum value.
	{
		alert(strMsg + " cannot be of more than " + inMax + " characters.Please retry.");
		strVal.focus();
		strVal.select();
		return(false);
	}
	else
	{
	return(true);
	}
}

// Function to make sure that a control contains numbers only.
function fnIsVal(stMsg,stVal2)
{

//alert("Here");
stVal = stVal2.value;
//alert("Here");
    var blnFlag
    var blnPrevFlag
    var stCtrlValue
    var inNum

    blnFlag=0
    blnPrevFlag = 0
    stCtrlValue = " "

    if (stVal.length > 0)
    {
        if (stVal != "0")
        {
            for (inNum=0;inNum<stVal.length;inNum++)
            {
                stCtrlValue = stVal.substring(inNum,inNum+1)
                //alert(stCtrlValue);
                if (stCtrlValue != "0")
                {
                    if ((parseInt(stVal.substring(inNum,inNum+1))==0) || (isNaN(parseInt(stVal.substring(inNum,inNum+1)))))
                    {
                        blnFlag= 1
                        break
                    }
                }
            }
            if (blnFlag == 1 )
            {
                var strErr

                strErr = stMsg + " has to be numeric"
                alert(strErr)
                stVal2.focus();
                stVal2.select();
                return false
            }
        }
    }
    return true
}
  
  
// Function to make sure that a control contains numbers only and "."
function fnIsValPrice(stMsg,stVal2)
{

//alert("Here");
stVal = stVal2.value;
//alert("Here");
    var blnFlag
    var blnPrevFlag
    var stCtrlValue
    var inNum
	var blnDot
    
    blnDot=0
    blnFlag=0
    blnPrevFlag = 0
    stCtrlValue = " "

    if (stVal.length > 0)
    {
        if (stVal != "0")
        {
            for (inNum=0;inNum<stVal.length;inNum++)
            {
                stCtrlValue = stVal.substring(inNum,inNum+1)
                //alert(stCtrlValue);
                if (stCtrlValue != "0")
                {
                    if ((parseInt(stVal.substring(inNum,inNum+1))==0) || (isNaN(parseInt(stVal.substring(inNum,inNum+1)))))
                    {
						if (stVal.substring(inNum,inNum+1)==".")
						{
						//alert((stVal.length-inNum));
							if ((blnDot==0) && ((stVal.length-inNum) <= 3))
							{
								blnDot=1
							}
							else
							{
								blnFlag= 1
								break
							}
						}
						else
						{
						 blnFlag= 1
						 break
						}
                    }
                }
            }
            if (blnFlag == 1 )
            {
                var strErr

                strErr = stMsg + " has to be numeric"
                alert(strErr)
                stVal2.focus();
                stVal2.select();
                return false
            }
        }
    }
    return true
}
  
// Check wheather combo box selected or not
function fnIsSelectedState(strMsg,varCtrl)
{
if (varCtrl.selectedIndex==0)
{
    var strErr;
    strErr = strMsg + " Any State.";
		    alert(strErr);
		    varCtrl.focus();
		    return false;		    
		}	
		
		return true;
}	

//CHECK FOR CORRECT E-MAIL ADDRESS
function fnIsValidEmail(varCtrl)
{	
	var flag=0;
	var str = varCtrl.value;
	var email_ok = "Y";
	var emaillength = varCtrl.value.length - 1;
	if (emaillength > 0)
	{
		for (i = 0; i<=emaillength; i++)
		{
			if (str.charAt(i) == "@")
			{
				if((emaillength-i) < 4)
				{
					alert("There should be at least 2 characters after @.");
					varCtrl.focus();
					varCtrl.select();
					return(false);
				}
			   flag=1;
			}
			if(flag==1)
			{
				if(str.charAt(i) == ".")
				{
					if((emaillength - i) < 2)
					{
						alert("There should at least be 2 characters after '.'");
						varCtrl.focus();
						varCtrl.select();
						return(false);
						
					}
				  flag=2;
				}
			}
		}
		if(flag!=2)
		  {
			alert("Please enter your correct E-MailID");
			varCtrl.focus();
			varCtrl.select();
			return(false);
		  }
	}
	return(true);
}