function numeric(field)
{
var valid = "1234567890-."
if(field.value!="")
{
		var len=field.value.length;
		var chk=field.value;
		for(i=0;i<len;i++)
		{
			x = chk.charAt(i)
			if(valid.indexOf(x) == -1)
			{
				field.focus()
				field.select()
				alert("Please enter only numeric values")
				return false;
			}
		}
}
return true;
}  

function filename(field)
{

var file1 = field.value;
var ext1 = file1.substring(file1.lastIndexOf('.'),file1.length);
		

if (ext1 == ".gif" || ext1 == ".jpg" || ext1 == ".jpeg" || ext1 == ".JPEG" || ext1 == ".JPG" || ext1 == ".GIF")
    {
	
    }
else
    {
	field.focus()
        alert('Please Select File in Gif, JPG, JPEG Format only');
        return false;

    }




return true;

}


function numeric2(field)
{
var valid = "1234567890."
if(field.value!="")
{
		var len=field.value.length;
		var chk=field.value;
		for(i=0;i<len;i++)
		{
			x = chk.charAt(i)
			if(valid.indexOf(x) == -1)
			{
				field.focus()
				field.select()
				alert("Please enter only Numeric and Positive values in Product Price")
				return false;
			}
		}
}
return true;
}  

function numeric3(field)
{
var valid = "1234567890"
if(field.value!="")
{
		var len=field.value.length;
		var chk=field.value;
		for(i=0;i<len;i++)
		{
			x = chk.charAt(i)
			if(valid.indexOf(x) == -1)
			{
				field.focus()
				field.select()
				alert("Please enter only Positive values without decimals")
				return false;
			}
		}
}
return true;
}  


function required(field,nm)
{

if(field.value == ""){
		alert(nm)
		field.focus()
		return false
	}
	return true

}

function limitation(field,nm)
{
var str=field.value 

if(str.length > 100){
		alert(nm)
		field.focus()
		return false
	}
	return true

}

function max_all(field,nm)
{
var str=field.value 

if(str > 16){
		alert(nm)
		field.focus()
		return false
	}
	return true

}


function max_row(field,nm)
{
var str=field.value 

if(str > 4){
		alert(nm)
		field.focus()
		return false
	}
	return true

}


function requireddrop(field,nm)
{

if(field.selectedIndex == 0){
		alert(nm)
		field.focus()
		return false
	}
	return true

}
 

function filename(field)
{

var file1 = field.value;
var ext1 = file1.substring(file1.lastIndexOf('.'),file1.length);
		

if (ext1 == ".gif" || ext1 == ".jpg" || ext1 == ".jpeg" || ext1 == ".JPEG" || ext1 == ".JPG" || ext1 == ".GIF")
    {
	
    }
else
    {
	
        alert('Please Select File in Gif, JPG, JPEG Format only');
	field.focus()
	field.select()
        return false;

    }




return true;

}


function validateemail(field)
{

emailStr=field.value.toLowerCase();

var checkTLD=1;
var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
var emailPat=/^(.+)@(.+)$/;
var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
var validChars="\[^\\s" + specialChars + "\]";
var quotedUser="(\"[^\"]*\")";
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
var atom=validChars + '+';
var word="(" + atom + "|" + quotedUser + ")";
var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
var matchArray=emailStr.match(emailPat);

if (matchArray==null) {

alert("Email address seems incorrect (check @ and .'s)");
field.focus()
field.select()
return false;
}
var user=matchArray[1];
var domain=matchArray[2];


for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
alert("Ths username contains invalid characters.");
field.focus()
field.select()
return false;
   }
}

for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
alert("Ths domain name contains invalid characters.");
field.focus()
field.select()
return false;
   }
}


if (user.match(userPat)==null) {

alert("The username doesn't seem to be valid.");
field.focus()
field.select()
return false;
}


var IPArray=domain.match(ipDomainPat);
if (IPArray!=null) {


for (var i=1;i<=4;i++) {
if (IPArray[i]>255) {
alert("Destination IP address is invalid!");
field.focus()
field.select()
return false;
   }
}
return true;
}

 
var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) {
if (domArr[i].search(atomPat)==-1) {
alert("The domain name does not seem to be valid.");
field.focus()
field.select()
return false;
   }
}


if (checkTLD && domArr[domArr.length-1].length!=2 && 
domArr[domArr.length-1].search(knownDomsPat)==-1) {
alert("The address must end in a well-known domain or two letter " + "country.");
field.focus()
field.select()
return false;
}


if (len<2) {
alert("This address is missing a hostname!");
field.focus()
field.select()
return false;
}

return true;
}