// Check browser version to set style sheet
var isIE = false;
var isFF = false;

if(navigator.appName == "Microsoft Internet Explorer")
	isIE = true;
else
	isFF = true;
	
if(isIE)
	document.write('<link rel="stylesheet" href="/css/ie_style.css">');
else if(isFF)
	document.write('<link rel="stylesheet" href="/css/ff_style.css">');
	
document.write('<link rel="stylesheet" href="/css/main_style.css">');
	

function IsEmpty(val)
{
	return (val=="");
}

function IsInRange(val,low,high)
{
	if(IsEmpty(val)) return false;
	return ((val>=low) && (val<=high));
}			

function IsInt(val)
{
	var i;
	if(IsEmpty(val)) return false;
	for(i=0;i<val.length;i++)
	{
		c=val.charAt(i);
		if(!((c>='0') && (c<='9'))) return false;
	}
	return true;
}

function IsNum(val)
{
	var i;
	if(IsEmpty(val)) return false;
	for(i=0;i<val.length;i++)
	{
		c=val.charAt(i);
		if(!(((c>='0') && (c<='9')) || 
			 (c=='.'))) return false;
	}
	return true;
}

function IsEmail(val)
{
	return((val.length>2) && (val.indexOf("@")!=-1));
}

function IsUsername(val)
{
	var i;
	if(IsEmpty(val)) return false;
	for(i=0;i<val.length;i++)
	{
		c=val.charAt(i);
		if(!(((c>='a') && (c<='z')) || 
			 ((c>='A') && (c<='Z')) ||
			 ((c>='0') && (c<='9')))) return false;
	}
	return true;
}

function IsPhonenumber(val)
{
	var i;
	if(IsEmpty(val)) return false;
	for(i=0;i<val.length;i++)
	{
		c=val.charAt(i);
		if(!(((c>='0') && (c<='9')) || 
			 ((c=='+') && (i==0)) ||
			 (c==' ') || (c=='-') || (c=='/'))) return false;
	}
	return true;		
}

function GetValue(objStr)
{
	var Obj=null;
	Obj=document.getElementById(objStr);
	if(Obj==null) alert("GetValue error: "+objStr);
	return Obj.value;
}
	
function SetValue(objStr,val)
{
	var Obj=null;
	Obj=document.getElementById(objStr);
	if(Obj==null)  return;
	Obj.value=val;
}
	
function GotoUrl(urlparam)
{
	window.location=urlparam;
}

function ConfirmUrl(urlparam)
{
	if(confirm("Are you sure?")) window.location=urlparam;
}

function Enable(objStr)
{
	document.getElementById(objStr).disabled=false;
}

function Disable(objStr)
{
	document.getElementById(objStr).disabled=true;
}