//pass the textbox value for checking sqlinjection
//It will check for any special character that match with the values we specified. 
//If invalid character is found it will gice alert and return 0.

function chktxt(element,value)
{
		var tval = document.getElementById(element).value;
		myArray = new Array("<",">","'","!","$","%","-","(",")",";","=","#","^","||","&","+","/","*","\\",":","?","`");
		var len =myArray.length;
		var tlen = tval.length;
		for (var x = 0; x <= len - 1 ; x++)
			{
				for (var y = 0; y <= tlen; y++)
					{
					if (myArray[x] == tval.charAt(y))
						{
							alert("Invalid Characters found in entries..Please Check!!");
							document.getElementById(element).value = '';	
							document.getElementById(element).focus();
							return false;				
						}
				//	else
					//return true;}
					}
			}
			return true;
			
}

function isNumber(element)
{
	var txtval=document.getElementById(element).value;
    var i;
    for (i = 0; i < txtval.length; i++)
    {   
        // Check that current character is number.
        var c = txtval.charAt(i);
        if (((c < "0") || (c > "9")))
		{
			alert("Invalid Characters found in entries..Please Check!!");
			document.getElementById(element).value = '';	
			document.getElementById(element).focus();
			return false;
		}
    }
    // All characters are numbers.
    return true;
}

function Maxlenght(element,length)
{
 var txt=document.getElementById(element).value;
 var len=txt.length;
 var ml=length;
 var s='';
 if(len > (ml-2))
 {
 	alert('You can type only '+ ml +' characters');
	document.getElementById(element).value='';
	s='';
	for(var i=0;i <= ml ; i++)
	{
		s=s+txt.charAt(i);
	}
	document.getElementById(element).value=s;
	return false;
 }
 
}

function agevalidator(element)
{
	var txtval=document.getElementById(element).value;
	var i;
    for (i = 0; i < txtval.length; i++)
    {   
        // Check that current character is number.
        var c = txtval.charAt(i);
        if (((c < "0") || (c > "9")))
		{
			alert("Invalid Characters found in entries..Please Check!!");
			document.getElementById(element).value = '';	
			document.getElementById(element).focus();
			return false;
		}
	}
	if(( txtval < 10 )|| (txtval >99))
	{
			alert("Invalid Age..Please Check!!");
			document.getElementById(element).value = '';	
			document.getElementById(element).focus();
			return false;
	}
	return true;
}