// JavaScript Document
function checkLoginName(LoginName)
{
	var LoginNameRE =/^[a-zA-Z0-9\.\-\_]+$/
	if (LoginName.match(LoginNameRE))
	{
		return true;
	}
	else
	{
		return false;
	}
}

function checkLoginNameLastChar(LoginName)
{
	var LoginNameRE =/^[a-zA-Z0-9\.\-\_]+[a-zA-Z0-9\-\_]$/
	if (LoginName.match(LoginNameRE)){
		return true;
	}else{
		return false;
	}
}

function isvalidEmail(emailid)
{
	var emailRegEx = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(emailid!="" && emailid.match(emailRegEx))
		return true;
	else
		return false;
}

function Trim(val) 
{
	//return ltrim(val);		
	return val;	
}
function ltrim(lval) 
{
	if(lval=="" || lval.charAt(0)!=' ')  
		return rtrim(lval);
	else
		ltrim(lval.substring(1,lval.length));
}
function rtrim(rval) 
{
	if(rval=="" || rval.charAt(rval.length-1)!=' ')  	 
		return rval;
	else
		rtrim(rval.substring(0,(rval.length-1)));
}

function extensioncheck(filename,option)
{
    var ext = filename.substring(filename.lastIndexOf('.') + 1).toLowerCase();
    if(option=="images")
	{
		if(ext == "gif" || ext == "png" || ext == "jpg")
	        return true;
	}
	else if(option=="movies")
	{
		if(ext == "wmv" || ext == "mov" || ext == "avi" || ext == "mpeg" || ext == "flv" || ext == "mp4")
	        return true;
	}
	return false;
}
function increaseFontSize() 
{
	var p = document.getElementsByTagName('p');
	for(i=0;i<p.length;i++) 
	{
		p[i].style.fontSize = 18+"px"
		p[i].style.lineHeight = 25+"px"
	}
}
function increaseFontSize1() 
{
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) 
   {
      p[i].style.fontSize = 24+"px"
      p[i].style.lineHeight = 30+"px"
   }
}
function decreaseFontSize() 
{
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) 
   { 
         p[i].style.fontSize = 12+"px"
         p[i].style.lineHeight = 20+"px"
   } 
}