//<![CDATA[
function reSize(){
    try {
        var oBody = ifrm.document.body;
        var oFrame = document.all("ifrm");
        
        oFrame.style.height = oBody.scrollHeight + (oBody.offsetHeight - oBody.clientHeight);
        oFrame.style.width = oBody.scrollWidth + (oBody.offsetWidth - oBody.clientWidth);
    } 
    //An error is raised if the IFrame domain != its container's domain
    catch (e) {
        window.status = 'Error: ' + e.number + '; ' + e.description;
    }
};

//show and hide divs
function displayDiv(obj){
    var divstyle = new String();
    divstyle = document.getElementById(obj).style.visibility;
    
    if (divstyle.toLowerCase() == "visible") {
        document.getElementById(obj).style.visibility = "hidden";
    }
    else {
        document.getElementById(obj).style.visibility = "visible";
    }
};

//check page last modified date and write out to page
function PageModified(){
    lastmod = document.lastModified // get string of last modified date
    lastmoddate = Date.parse(lastmod) // convert modified string to date
    if (lastmoddate == 0) { // unknown date (or January 1, 1970 GMT)
        document.writeln("Last Modified: Unknown")
    }
    else {
        document.writeln("Last Modified: " + lastmod)
    }
};

/*==========================================================================#
# * Function for adding a Filter to an Input Field                          #
# * @param  : [filterType  ] Type of filter 0=>Alpha, 1=>Num, 2=>AlphaNum   #
# * @param  : [evt         ] The Event Object                               #
# * @param  : [allowDecimal] To allow Decimal Point set this to true        #
# * @param  : [allowCustom ] Custom Characters that are to be allowed       #
#==========================================================================*/
function filterInput(filterType, evt, allowDecimal, allowCustom){
	var keyCode, Char, inputField, filter = '';
	var alpha = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
	var num   = '0123456789';
	// Get the Key Code of the Key pressed if possible else - allow
	if(window.event){
		keyCode = window.event.keyCode;
		evt = window.event;
	}else if (evt)keyCode = evt.which;
	else return true;
	// Setup the allowed Character Set
	if(filterType == 0) filter = alpha;
	else if(filterType == 1) filter = num;
	else if(filterType == 2) filter = alpha + num;
	if(allowCustom)filter += allowCustom;
	if(filter == '')return true;
	// Get the Element that triggered the Event
	inputField = evt.srcElement ? evt.srcElement : evt.target || evt.currentTarget;
	// If the Key Pressed is a CTRL key like Esc, Enter etc - allow
	if((keyCode==null) || (keyCode==0) || (keyCode==8) || (keyCode==9) || (keyCode==13) || (keyCode==27)) return true;
	// Get the Pressed Character
	Char = String.fromCharCode(keyCode);
	// If the Character is a number - allow
	if((filter.indexOf(Char) > -1)) return true;
	// Else if Decimal Point is allowed and the Character is '.' - allow
	else if(filterType == 1 && allowDecimal && (Char == '.') && inputField.value.indexOf('.') == -1) return true;
	else return false;
}
//]]