// JavaScript Document
image1 		= new Image();
image1.src 	= "images/spacer.gif";

image2 		= new Image();
image2.src 	= "images/center_left_top.gif";

image3 		= new Image();
image3.src 	= "images/center_hor_top.gif";

image4 		= new Image();
image4.src 	= "images/center_right_top.gif";

image5 		= new Image();
image5.src 	= "images/center_ver_left.gif";

image6 		= new Image();
image6.src 	= "images/center_ver_right.gif";

image7 		= new Image();
image7.src 	= "images/center_left_bottom.gif";

image8 		= new Image();
image8.src 	= "images/center_hor_bottom.gif";

image9 		= new Image();
image9.src 	= "images/center_right_bottom.gif";


// JavaScript Document
function expand(name) {
	document.getElementById( name ).style.display = "block";
}

function collapse(name) {
	document.getElementById( name ).style.display = "none";
}

function change_color(el, bg1, bg2){
	for (i = 0; i < el.parentNode.childNodes.length; i++)
		if (el.parentNode.childNodes[i].tagName)
		el.parentNode.childNodes[i].style.backgroundImage=bg2
		el.style.backgroundImage=bg1
}

function preview_image(url, text){
	document.photo_img.src 								= url;
	document.getElementById("photo_text").innerHTML 	= text;
}

function print_page(listing) {
	var leftPos = (screen.availWidth-700) / 2;
	var topPos = (screen.availHeight-500) / 2;
	Press1Win = window.open('site_detail_print.php?listing=' + listing,'','width=700,height=500,scrollbars=yes,resizable=no,titlebar=0,top=' + topPos + ',left=' + leftPos);
}
function check_year(field, year_range)
{
var txt=document.getElementById("valid_year");
if (isInteger(field.value) == false) 
{
txt.innerHTML='<font color=red>&#1587;&#1575;&#1604; &#1589;&#1581;&#1740;&#1581; &#1606;&#1605;&#1740; &#1576;&#1575;&#1588;&#1583;</font>';
field.value = '';
field.focus();
}
if (field.value < 1200 || field.value > 2020  ) 
{
txt.innerHTML='<font color=red>&#1587;&#1575;&#1604; &#1589;&#1581;&#1740;&#1581; &#1606;&#1605;&#1740; &#1576;&#1575;&#1588;&#1583;</font>';
field.value = '';
field.focus();
} else {
txt.innerHTML = '';
}
}

function check_digit(field, check_this)
{
var txt=document.getElementById(check_this);
if (isInteger(field.value) == false) 
{
txt.innerHTML='<font color=red>&#1604;&#1591;&#1601;&#1575;&#1612; &#1593;&#1583;&#1583; &#1575;&#1587;&#1578;&#1601;&#1575;&#1583;&#1607; &#1705;&#1606;&#1740;&#1583;!</font>';
field.value = '';
field.focus();
} else {
txt.innerHTML = '';
}
}


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 check_email(field, check_this)
{
var txt=document.getElementById(check_this);
var email = field.value;
 if (email.indexOf(' ')==-1 && 0<email.indexOf('@') && email.indexOf('@')+1 < email.length) 
 {
 txt.innerHTML = '';
 }
 else 
 {
 txt.innerHTML='<font color=red>&#1604;&#1591;&#1601;&#1575;&#1612; &#1575;&#1740;&#1605;&#1740;&#1604; &#1589;&#1581;&#1740;&#1581; &#1608;&#1575;&#1585;&#1583; &#1705;&#1606;&#1740;&#1583;!</font>';
 field.value = '';
 field.focus();
 }
}