function Trim(s) 
{
  // Remove leading spaces and carriage returns
  while ((s.substring(0,1) == ' ') || (s.substring(0,1) == '\n') || (s.substring(0,1) == '\r'))
  {
    s = s.substring(1,s.length);
  }
  // Remove trailing spaces and carriage returns
  while ((s.substring(s.length-1,s.length) == ' ') || (s.substring(s.length-1,s.length) == '\n') || (s.substring(s.length-1,s.length) == '\r'))
  {
    s = s.substring(0,s.length-1);
  }
  return s;
}


function alphachar(value,length)
{
	chk1="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
	for(i=0;i<length;i++)
	{
		ch1=value.charAt(i);
		rtn1=chk1.indexOf(ch1);
		if(rtn1==-1)
			return false;
	}
	return true;
}

function ValidInteger() // on keypress allow only 1234567890
{
	val = event.keyCode;
	if(val<48 || val>57)
	  event.keyCode=0;
	return true;
}

function ValidFloat() // on keypress allow only 1234567890.
{  
	val = event.keyCode;
	if(val<48 && val!=46) {
	  event.keyCode=0;
	}
	if(val>57) {
	  event.keyCode=0;
	}
	return true;
}

//********************* START of function for email-id validation  ****************************//
function isValidEmail(emailStr) {
	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 +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null) {
		alert("Email address seems incorrect (check @ and .'s)");
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	// Start by checking that only basic ASCII characters are in the strings (0-127).
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			alert("Ths username contains invalid characters in e-mail address.");
			return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			alert("Ths domain name contains invalid characters in e-mail address.");
			return false;
		}
	}
	if (user.match(userPat)==null) {
		alert("The username doesn't seem to be valid in e-mail address.");
		return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				alert("Destination IP address is invalid!");
				return false;
	   		}
		}
		return true;
	}
	var atomPat=new RegExp("^" + atom + "$");
	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 in e-mail address.");
			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.");
		return false;
	}

	if (len<2) {
		alert("This e-mail address is missing a hostname!");
		return false;
	}	
	return true;
}
//********************* END of function for email-id validation  ****************************//

function phonenumber(value,length)
{
	chk1="1234567890-()+";
	for(i=0;i<length;i++)
	{
		ch1=value.charAt(i);
		rtn1=chk1.indexOf(ch1);
		if(rtn1==-1)
			return false;
	}
	return true;
}


function isFile() 
{

	var sFolderPath = "C:\\demotpix.exe";
	var objFSO = new ActiveXObject("Scripting.FileSystemObject");


  
  //return objFSO.FolderExists(sFolderPath);
  //alert(objFSO.FileExists(sFolderPath));
	var state;
	if (objFSO.FileExists(sFolderPath) == true) 
	{

		var oShell = new ActiveXObject("Shell.Application");
		var commandtoRun = "C:\\demotpix.exe";

// Invoke the execute method.  
		oShell.ShellExecute(commandtoRun, "", "", "open", "1");				
		state = 1;
	}
	else 
	{
		alert ("You don't have the application, so download it on your C Drive");   
		window.location = 'http://www.tooth-pix.com/demo/demotpix.exe';//document.doctor_form.status.value = 'yes';
		//document.all.doctor_form.submit();
		//state = 2;
	}
}
function redirect(page)
{
	window.location = page;
}

function textCounter(field, countfield, maxlimit)
{
  countfield.value = field.value.length;
}

/*
	::::Usage::::
	<textarea name="txtheadline" class="textbox" wrap="hard" cols="80" rows="5"
          onKeyDown="textCounter(this.form.txtheadline,this.form.remLen,200);"
          onKeyUp="textCounter(this.form.txtheadline,this.form.remLen,200);"><? echo $fetch_headline; ?></textarea><br>
         <input readonly type="text" name="remLen" size="1" maxlength="3" value="200" class="textbox"> Character(s) left
*/	
function open_popup(url)
{
	var newWindow;
	var t;
	t = "no";
	if (String(t)=='no') {
		newWindow = window.open(url,"message","toolbar=" + t + ",scrollbars=yes,left=100,resizable=yes,width=500,height=600");
	}
	if (String(t)=='yes') {
		newWindow = window.open(url,"message","scrollbars=yes,resizable=yes,menubar=yes,status=yes,toolbar=yes,directories=yes,personalbar=yes,location=yes,hotkeys=yes,width=500,height=600");
	}
	if (window.focus) { newWindow.focus(); }

	//newwindow = window.open (url,'Hi','width=800,height=600,middle');
	//newwindow.focus();
	//var y = window.prompt("please enter user name") 
	//alert (y);
}