function show(tab)
{ 
 i=1;
    while (document.getElementById("m_"+i))
 {
 document.getElementById("m_"+i).style.display='none'; 
 i++;
 }
 document.getElementById(tab).style.display='block';
}
function subshow(st)
{ 
 i=1;
    while (document.getElementById("s_"+i))
 {
 document.getElementById("s_"+i).style.display='none'; 
 i++;
 }
 document.getElementById(st).style.display='block';
}


function hide(tab)
{  
 document.getElementById(tab).style.display='none'; 
 }
 

function MM_validateForm()
{

if (document.getElementById("realname").value==""){
			alert("Please enter your name ");
			document.getElementById("realname").focus();
			return false;
		}
		if (validateEmailv2(document.getElementById("emailAddress").value)==false){
			alert("Please enter valid e-mail address ");
			document.getElementById("emailAddress").focus();
			return false;
		}

		if (document.getElementById("Phone").value==""){
			alert("Please enter phone number ");
			document.getElementById("Phone").focus();
			return false;
		}
		
		if(document.getElementById("Mobile").value==""){
			alert("Please enter mobile phone number");
			document.getElementById("Mobile").focus();
			return false;
		}		
		
		if (document.getElementById("dob").value=="")
		{
		    alert("Please enter Date of Birth ");
			document.getElementById("dob").focus();
			return false;
		}
		if (!(isDate(document.getElementById("dob").value)))
		{		    
			document.getElementById("dob").focus();
			return false;
		}
		if (document.getElementById("list").selectedIndex==0 ){
			alert("Please select where you heard of Coulson Pritchard Associates");
			document.getElementById("list").focus();
			return false;
		}
		if(document.getElementById("Comments").value.replace(/ /gi,"")==""){
			alert("Please enter your comments");
			document.getElementById("Comments").focus();
			return false;
		}
		if(document.getElementById("strCAPTCHA").value=="")
        {
            alert("Please enter Verification Text");
            document.getElementById("strCAPTCHA").focus();
            return false;
       }
		return true;
	
}


function validateEmailv2(email)
{
    if(email.length <= 0) return false;
    var splitted = email.match("^(.+)@(.+)$");
    if(splitted == null) return false;
    if(splitted[1] != null )
    {
      var regexp_user=/^\"?[\w-_\.]*\"?$/;
      if(splitted[1].match(regexp_user) == null) return false;
    }
    if(splitted[2] != null)
    {
      var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
      if(splitted[2].match(regexp_domain) == null) 
      {
	    var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
	    if(splitted[2].match(regexp_ip) == null) return false;
      }// if
      return true;
    }
   return false;
}
function stripCharsInBag(s, bag){
	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 isInteger(s){
	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 DaysArray(n) {
	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 strMonth=dtStr.substring(0,pos1)
	var strDay=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)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("Please enter valid date")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter 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 valid date")
		return false
	}		
    return true
}