// JavaScript Document
function validation1()
{
	
	var frm=document.consultation;
	if(frm.contact_greeting.value=="")
	{
	alert("Please Enter Patient Name");	
	frm.contact_greeting.focus();
	return false;
	}
	if(frm.contact_greeting.value!="")
	{
		var val=frm.contact_greeting.value;
		var p1=val.indexOf("'");
				var p2=val.indexOf(",");
				var p3=val.indexOf(" ");
				if(p1==0 || p2==0 || p3==0)
				{
					alert("Please Enter valid Patient Name");
				frm.contact_greeting.focus();
				return false;
					}
	}
	 if(!isCharsInBag(frm.contact_greeting.value,"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz ',"))
	{
				alert("Patient Name Contains Invalid Characters,Only Alphabets Are Allowed.");
				frm.contact_greeting.focus();
				return false;
	}
	 
			
 if(frm.contact_street_address.value=="")		
	{
		alert("Please Enter Mailing Address");
		frm.contact_street_address.focus();
		return false;
	}
	else if(!isCharsInBag(frm.contact_street_address.value,"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890 ()# - : / . ,"))
			{
						alert("Please Enter Valid Mailing Address");
                 		frm.contact_street_address.focus();
                 		return false;

			}	
			
 if(frm.contact_city.value=="")		
	{
		alert("Please Enter City");
		frm.contact_city.focus();
		return false;
	}
else if(!isCharsInBag(frm.contact_city.value,"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz "))
			{
				alert("Please Enter Valid City");
		frm.contact_city.focus();
		return false;
			}
	
	 if(frm.contact_state.value=="")
	{
		alert("Please Enter State");
		frm.contact_state.focus();
		return false;
	}
	else if(!isCharsInBag(frm.contact_state.value,"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz "))
			{
						alert("State Contains Invalid Characters,Only Alphabets Are Allowed");
		frm.contact_state.focus();
		return false;
 }

 if(frm.contact_zip.value=="")
	{
		alert("Please Enter Zip");
		frm.contact_zip.focus();
		return false;
	}

/*if(!isCharsInBag(frm.contact_zip.value,"1234567890"))
			{
				alert("Zipcode Contains Invalid Characters,Only Numerics Are Allowed");
		frm.contact_zip.focus();
		return false;

			}*/
			 if(frm.contact_area_code_and_phone_number.value=="")
			{
			alert("Please Enter Area Code and Phone Number");
			frm.contact_area_code_and_phone_number.focus();
			return false;
			}
			else if(!isCharsInBag(frm.contact_area_code_and_phone_number.value,"1234567890 -+()"))
			{
							alert("Please Enter Valid Area Code And Phone Number");
			frm.contact_area_code_and_phone_number.focus();
			return false;
                 
			}
			 if(frm.contact_date_of_birth.value=="")
			{
				alert("Please Enter Date Of Birth");
				frm.contact_date_of_birth.focus();
				return false;
			}
			else if (isDate(frm.contact_date_of_birth.value)==false){
		alert("Please Enter Valid Date Of Birth");
				frm.contact_date_of_birth.focus();
				return false;
	}	
			 if(frm.contact_email.value=="")		
	{
	 	alert("Please Enter Email");	
	    frm.contact_email.focus();
	    return false;
	}
	    else  if(!validateEmail(frm.contact_email.value))
			{
				alert("Please Enter Valid Email");	
				frm.contact_email.focus();
				return false;
			}
			
	return true;

}


function isInteger(s){
	var dtCh= "/";
var minYear=1900;
var maxYear=2100;
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var dtCh= "/";
var minYear=1900;
var maxYear=2100;
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	var dtCh= "/";
var minYear=1900;
var maxYear=2100;
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	var dtCh= "/";
var minYear=1900;
var maxYear=2100;
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	var dtCh= "/";
var minYear=1900;
var maxYear=2100;
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	
	day=parseInt(strMonth)
	month=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The Date Format Should be : MM/DD/YYYY")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please Enter A Valid Month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please Enter A Valid Day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please Enter A Valid 4 Digit Year Between "+minYear+" And "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please Enter A Valid Date")
		return false
	}
return true;
}
function cutChars(s, c)
		{
			var s1, x;
			x = s1 = "";
			l = s.length;
			for(i = 0; i < l; i++)
				if((x = s.charAt(i)) != c)
					s1+=x;
			return s1;
		}
		function isCharsInBag (s, bag)
		{  
			var i;
			for (i = 0; i < s.length; i++)
			{   
		       
				var c = s.charAt(i);
				if (bag.indexOf(c) == -1) return false;
			}
			return true;
		}
			function validateEmail(emailid)
		{
			if (emailid.charAt(0) == ' ')
			{
			alert("Email cannot have spaces");
			return false;
			}
			emailid = cutChars(emailid, " ");
			if(cutChars(emailid, ' ') == '')
			{
				return true;
			}
			at = emailid.indexOf("@");
			if(at <= -1) //one @ shd be there, not as the 1st char tho'
			{
				alert("Invlaid Emailid - no @");
				return false;
			}
			at1 = emailid.indexOf("@", at + 1);
			if(at1 != -1) //only one @ shd be there
			{
				alert("Invlaid Emailid - only one @");
				return false;
			}
			dot = emailid.indexOf(".", at + 1);
			if(dot - at < 2) //. shd be present, with atleast 1 char after @
			{
				alert("Invlaid Emailid - @.");
				return false;
			}
			if(emailid.indexOf(".@") != -1) //. shd not be just b4 @
			{
				alert("Invlaid Emailid - .@");
				return false;
			}
			if(emailid.indexOf("..") != -1)
			{
				alert("Invlaid Emailid - ..");
				return false;
			}
			if(emailid.charAt(emailid.length - 1) == "." || emailid.charAt(emailid.length - 2) == ".")
			{
				alert("Invlaid Emailid - last two chars");
				return false;
			}
			return true;
		}


// JavaScript Document