function GetXmlHttpObject()
{
var xmlHttp=null;
	try
	{
	// Firefox, Opera 8.0+, Safari
	xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
	// Internet Explorer
		try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}

function setnooffile()
{
	document.getElementById("nooffile").value=1;
}

function chkTitle(title)
{
	var y = document.getElementById("titleexist");
	var str = new String("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQESTUVWXYZ1234567890 ");
	var len = str.length;
	
	if(title.value=="")
	{
		y.innerHTML ="Enter Title";
	}
	else
	{
		var s = new String(title.value);
		var l = s.length;
		for(i=0;i<l;i++)
		{
			ch = s.charAt(i);
			if(str.indexOf(ch)<0)
			{	y.innerHTML ="<br>Special character like <b>< > ? , . / \ = + - etc</b> not allowed in title";
				title.value='';
				return ;
			}
		}
		
			getAJAX = GetXmlHttpObject();
			//alert("ajax.php?function=seemsg&username="+username+"&commwith="+commwith);
			if (getAJAX.readyState == 4 || getAJAX.readyState == 0) 
			{
				//alert("ajax.php?function=chktitle&tname="+title.value);
				getAJAX.open("GET","ajax.php?function=chktitle&tname="+title.value, true);
				getAJAX.onreadystatechange = function () 
				{
				   if (getAJAX.readyState == 4)
				   {
					   //alert(getAJAX.responseText);
						if(getAJAX.responseText=="1")
						{
							//title.value="";
							//title.focus();
							y.innerHTML = '<br>'+title.value+' available';
						}
						else
						{
							
							title.focus();
							y.innerHTML ='<br>Title `'+title.value+'` not available';
							title.value="";
						}
				   }
				}
				getAJAX.send(null);
			}
	}
}
function chkImgUpload(t,path)
{
	if(t.title.value=="")
	{	document.getElementById("Enter title"); t.title.focus();	return false;}
	else if(document.getElementById("nooffile").value=="0")
	{
		//alert(document.getElementById("nooffile").value);
		alert("Please browse at least one image"); return false;
	}
	else
	{	
		document.getElementById("progressbar").style.display="block";
		//document.getElementById("progressbar").innerHTML='<br><br><br><br><br><br><br><br><br><br><br><br><center><img src="'+path+'/images/progressbar_green.gif"></center><br><br>	<center><font color="#3333FF" size="+2">Uploading . . .</center>';
		return true;
	}
}
function large(path,w,h)
{
	window.open(path,"_blank","width="+w+",height="+h+"scrollbar=yes,resizable=yes");
}