//Clear the text on Focus event of the textbox.
function empty(myElement)
{
	if (myElement.value == myElement.defaultValue) 
	myElement.value = "";
}

//Removes leading whitespaces.
function LTrim( value ) {
	
	var re = /\s*((\S+\s*)*)/;
	return value.replace(re, "$1");
	
}

// Removes ending whitespaces
function RTrim( value ) {
	
	var re = /((\s*\S+)*)\s*/;
	return value.replace(re, "$1");
	
}

// Removes leading and ending whitespaces
function trim( value ) {
	
	return LTrim(RTrim(value));
	
}

//Validate the search string.
//If the string is empty do not submit the page.
function validateSearchString(searchText)
{	
	searchText = trim(searchText);
	
	if(searchText == '')
	{
		alert('Please enter one or more search words.');
		return false;
	}
	else
	{		
		return true;
	}
}


function Browseris () {
	var agt=navigator.userAgent.toLowerCase();
	this.osver=1.0;
	if (agt)
	{
		var stOSVer=agt.substring(agt.indexOf("windows ")+11);
		this.osver=parseFloat(stOSVer);
	}
	this.major=parseInt(navigator.appVersion);
	this.nav=((agt.indexOf('mozilla')!=-1)&&((agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible')==-1)));
	this.nav6=this.nav && (this.major==5);
	this.nav6up=this.nav && (this.major >=5);
	this.nav7up=false;
	if (this.nav6up)
	{
		var navIdx=agt.indexOf("netscape/");
		if (navIdx >=0 )
			this.nav7up=parseInt(agt.substring(navIdx+9)) >=7;
	}
	this.ie=(agt.indexOf("msie")!=-1);
	this.aol=this.ie && agt.indexOf(" aol ")!=-1;
	if (this.ie)
		{
		var stIEVer=agt.substring(agt.indexOf("msie ")+5);
		this.iever=parseInt(stIEVer);
		this.verIEFull=parseFloat(stIEVer);
		}
	else
		this.iever=0;
	this.ie4up=this.ie && (this.major >=4);
	this.ie5up=this.ie && (this.iever >=5);
	this.ie55up=this.ie && (this.verIEFull >=5.5);
	this.ie6up=this.ie && (this.iever >=6);
	this.winnt=((agt.indexOf("winnt")!=-1)||(agt.indexOf("windows nt")!=-1));
	this.win32=((this.major >=4) && (navigator.platform=="Win32")) ||
		(agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1);
	this.mac=(agt.indexOf("mac")!=-1);
	this.w3c=this.nav6up;
	this.safari=(agt.indexOf("safari")!=-1);
	this.safari125up=false;
	if (this.safari && this.major >=5)
	{
		var navIdx=agt.indexOf("safari/");
		if (navIdx >=0)
			this.safari125up=parseInt(agt.substring(navIdx+7)) >=125;
	}
}
var browseris=new Browseris();
var bis=browseris;

function wcaSearchKeyDown(event, strUrl)
{
	if (wcaIsKeyDownSubmit(event))
	{

GoSearch(null,'idSearchString',null,true,false,null,null,null,null,strUrl, 'This Site','This List', 'This Folder', 'Related Sites', '\u002f_layouts\u002fOSSSearchResults.aspx');

		return false;
	}
	return true;
}



function wcaIsKeyDownSubmit(event)
{
	if (event !=null)
	{
		var charCode;
		var bKeyModifiers;
		if (browseris.ie)
		{
			charCode=event.keyCode;
			bKeyModifiers=event.altKey || event.ctrlKey;
		}
		else
		{
			charCode=event.which;
			bKeyModifiers=event.modifers &
			(event.ALT_MASK | event.CONTROL_MASK);
		}
		if ((charCode==13) && !bKeyModifiers)
			return true;
	}
	return false;
}