function clear_user()
 {
	var user = document.getElementById('username').value;
	
	if(user=="Username")
	{
	   document.getElementById('username').value = "";
	}
	
	if(user=="")
	{
	   document.getElementById('username').value = "Username";
	}
 }

function clear_title(mode)
 {
	var title = document.getElementById('posttitle').value;
	
	if(mode==1)
	{
		if(title=="Title")
		{
		   document.getElementById('posttitle').value = "";
		}
	}else
	{
	
		if(title=="")
		{
		   document.getElementById('posttitle').value = "Title";
		}
	}
 }
 
function clear_pass()
 {
	var user = document.getElementById('username').value;
	var pass = document.getElementById('password').value;
	
	if(pass=="123456")
	{
	   document.getElementById('password').value = "";
	}
	
	if(pass=="")
	{
	   document.getElementById('password').value = "123456";
	}
 }
function open_url(url)
{
  window.location = url;
}

var txt = "";
var range="";

var flag = false;

function check_select(objname2)
{
	 txt = "";
     var e2 = document.getElementById(objname2);

     if (e2.setSelectionRange) {

           //Mozilla or FireFox Code

           txt =  e2.value.substring(e2.selectionStart,e2.selectionEnd);
   
		   if(txt=="")
		   {
		   
		     alert("Please select some text for inserting link");
			 return;
		   
		   }

      }

      else if (document.selection && document.selection.createRange) {

            range = document.selection.createRange();
            
			flag = true;
			
			var startPos = e2.selectionStart;
			var endPos = e2.selectionEnd;
			
			var doc = document.selection;
			
			if(doc && doc.createRange().text.length != 0){
			
			 txt = doc.createRange().text;
			
			}else if (!doc && e2.value.substring(startPos,endPos).length != 0){
			
		     txt = e2.value.substring(startPos,endPos);
			 
	        }
			
			if(txt=="")
			{
			  flag = false;
			  alert("Please select some text for inserting link");
			  return;
			}
			
      }

        
 
}
function bin_insert(e, objname, openTag, closeTag) {
    
	 
	 var el = document.getElementById(objname);

     if (el.setSelectionRange) {

           //Mozilla or FireFox Code

          var st = el.scrollTop;

          var ss = el.selectionStart;

          var se = e.selectionEnd;

           el.value = el.value.substring(0,el.selectionStart) + openTag + el.value.substring(el.selectionStart,el.selectionEnd) + closeTag + el.value.substring(el.selectionEnd,el.value.length);

           el.selectionStart = ss;

           el.selectionEnd = ss;

           el.scrollTop = st;

      }

      else if (document.selection && document.selection.createRange) {

           //Internet Explorer Code
          
          el.focus(); //Makes sure tags are being added to the textare

          if(flag==true)
		  {
			  
			  flag=false;
              range.text = openTag + txt + closeTag; //Adds beginning and end tags.
			  range = "";
			  
			  
		  }else
		  {
			  range = document.selection.createRange();

              range.text = openTag + range.text + closeTag; //Adds beginning and end tags.
			  
		  }

      }

      el.focus();          

}