function users_check(id)
{
	var pass = document.form1.pass.value;
	var conpass = document.form1.confirmpass.value;
	
	if(id =="") 
	{
		var username = form1.username.value;
		if(isBlank(document.form1.username.value))
		{
			alert("Please enter the User Name.");
			document.form1.username.value=""; 
			document.form1.username.focus(); 
			return false;
		}

		var valid=false;
		var em=document.form1.email.value;

		if(em=="")
		{
			alert("Please enter the Email Id");
			document.form1.email.focus();
			return false;
		} 
		else
		{
			if(!(/^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/.test(em)))	
			{
				alert("Please enter valid Email Id.");
				document.form1.email.select();			
				document.form1.email.focus();
				return false;
			}
			else
			{
				if(window.ActiveXObject)
				{
					objXmlHTTP= new ActiveXObject("Microsoft.XMLHTTP");
				}
				else
				{
					objXmlHTTP= new XMLHttpRequest();
				}
					var url_list = "../includes/is_exists.php?mail="+em;
					var next_data = "";
					objXmlHTTP.open("POST",url_list,false);
					objXmlHTTP.send("");
					next_data = objXmlHTTP.responseText;
					//alert (next_data)
					if( next_data ==1 )
					{
						alert("Email Id (login Id) already exists");
						return false;
					}
			}
		}
	}
		
	if(pass=="")
	{
		alert("Please enter the Password.");
		document.form1.pass.focus(); 
		return false;
	}
	if(pass!="" && pass.length<5)
	{
		alert("Please enter minimum 5 character length of Password");
		document.form1.pass.focus(); 
		return false;
	}
	if(conpass=="")
	{
		alert("Please enter the Confirm Password.");
		document.form1.confirmpass.focus(); 
		return false;
	}
	if(conpass!="" && conpass.length<5)
	{
		alert("Please enter minimum 5 character length of Confirm Password");
		document.form1.confirmpass.focus(); 
		return false;
	}

	if(form1.pass.value != form1.confirmpass.value)
	{
		alert("Both Passwords should be same.");
		form1.pass.focus();
		return false;
	}
	
	var len = document.form1.elements.length;
	var chk=0;
	for(var i=0;i<len;i++)
	{
		if(document.form1.elements[i].type=="checkbox" && document.form1.elements[i].checked)
		{
			chk=1;
		}
	}

	if(chk==0)
	{
		alert("Please select the Privilege(s)");
		return false;
	}	
	
	/*if((form1.upload.checked ==false) && (form1.download.checked ==false) && (form1.delete1.checked ==false))
	{
		alert("Please select the Privilege(s)");
		form1.upload.focus();
		return false;
	}
	*/
}

function user_delete_check()
{
	if(confirm("Are you sure you want to delete the user?"))
		res = confirm("Files related to the user will also get deleted. Are you sure?");
	else
		return false;

	if(res)
	{   
		document.form1.type.value="delete";
		document.form1.action = "users.php";
		document.form1.submit();
		return false;
	}
}

function delete_file_check()
{
	if(form1.member_code.value==0)
	{
		alert("Please select the User");
		document.form1.member_code.focus();
		return false;
	}
	else
	{
		document.form1.type.value="list";
		document.form1.action="delete_files.php";
		document.form1.submit();
		return false;
	}
}

function delete_check()
{ 
	document.form1.type.value="delete";
	
	$flag=1;
	for(i=0;i<document.form1.elements.length;i++)
	{
		if ( document.form1.elements[i].type == "checkbox" && document.form1.elements[i].checked == true)
		{
			$flag=0;
		}
	}
	if($flag==0)
	{	
		return(confirm("Are you sure to delete the selected file(s)?"));
	}
	else
	{
		alert("Please select one or more file(s) to delete.");
		return false;
	}
}