function validateProp(){
	s=document.form1.price.value;
	if (isInteger(s)==false || s.length <= 2){
		alert("Please enter the price correctly");
		return false;
	}
}
function validate(){
	s=document.form1;
	if(!isEmail (s.eMail.value)){
		alert("Please enter a valid email address");
		return false;
	}else{
	if(s.contactNo.value.length<1){
		alert("Please enter your contact no");
		return false;
	}
	if(s.queryC.value.length<1){
		alert("Please enter your query");
		return false;
	}	
	
	return true;}
}
function validateBuyer(){
	s=document.MembersTbl;
	if(!isEmail (s.eMail.value)){
		alert("Please enter a valid email address");
		return false;
	}else{
	if(s.firstName.value.length<1){
		alert("Please enter your contact no");
		return false;
	}
	if(s.lastName.value.length<1){
		alert("Please enter your query");
		return false;
	}
	if(s.telHome.value.length<1){
		alert("Please enter your query");
		return false;
	}
	
	
	return true;}
}




function isEmail (s){

	if (isEmpty(s)){  return false;}      
    	if (isWhitespace(s)) { return false;}

    
    // there must be >= 1 character before @, so we
    // start looking at character position 1 
    // (i.e. second character)
    var i = 1;
    var sLength = s.length;

    // look for @
    while ((i < sLength) && (s.charAt(i) != "@"))
    { i++
    }

    if ((i >= sLength) || (s.charAt(i) != "@")) return false;
    else i += 2;

    // look for .
    while ((i < sLength) && (s.charAt(i) != "."))
    { i++
    }

    // there must be at least one character after the .
    if ((i >= sLength - 1) || (s.charAt(i) != ".")){ return false;}
    else{ return true;}
}


function isEmpty(s)
{   return ((s == null) || (s.length <1))
}

function validateUpload(){
	s=document.Form1.File1.value;
	if (isEmpty(s)){
		alert("Please select a property");
		return false;
	}
}

// Returns true if string s is empty or 
// whitespace characters only.
var whitespace = " \t\n\r";
function isWhitespace (s)

{   var i;

    // Is s empty?
    if (isEmpty(s)) return true;

    // Search through string's characters one by one
    // until we find a non-whitespace character.
    // When we do, return false; if we don't, return true.

    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);

        if (whitespace.indexOf(c) == -1) return false;
    }

    // All characters are whitespace.
    return true;
}

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;
}