// JavaScript Document

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

MM_preloadImages('images/homeon.gif','images/joinon.gif','images/practitionerson.gif','images/schoolson.gif','images/askon.gif','images/workshopon.gif','images/shopon.gif','images/articaleson.gif','images/blogon.gif','images/forumon.gif','images/videoson.gif','images/lifesupporton.gif','images/reviewon.gif');

//function for officeHours close button to activate or deactivate Begin and End date
function close_navigate(objChkbox, objBegin, objEnd )
{
	var objbeg = document.getElementById(objBegin); 
	var objed = document.getElementById(objEnd); 
	if(objChkbox.checked == true)
	{
		objbeg.value="";
		objed.value="";		
		objbeg.disabled=true;
		objed.disabled=true;
	}
	else
	{
		objbeg.value="9:00 AM";
		objed.value="5:00 PM";		
		objbeg.disabled=false;
		objed.disabled=false;
	}
}

///////////Function to active description field if click on yes radio button
function check_yes_no_description(objRadiobut, objfield)
{
	var objfild = document.getElementById(objfield);
	if(objRadiobut.value=="1")
	{
		objfild.value="";
		objfild.disabled=false;
		objfild.focus();
	}
	else
	{
		objfild.value="";
		objfild.disabled=true;
	}
}

///////////Function to restrict the size of a TEXTAREA field
function textarea_length(objTextarea,objTextfield, sizeVar)
{
	if(objTextarea.value.length>parseInt(sizeVar))
	{
		objTextarea.value=objTextarea.value.substr(0,parseInt(sizeVar));
		return true;
	}
	else
	{
		var objfild = document.getElementById(objTextfield);
		objfild.value=parseInt(sizeVar)-objTextarea.value.length;	
	}
}

///////////Function to handle textfields
function text_if_blank(objTextbut, oldval)
{
//	var objfild = document.getElementById(objfield);
	if(objTextbut.value==oldval)
	{
		objTextbut.value="";
		objTextbut.focus();
	}
}

function text_if_no_blank(objTextbut, oldval)
{
//	var objfild = document.getElementById(objfield);
	if(TrimAll(objTextbut.value)=="")
	{
		objTextbut.value=oldval;
	}
}

function IsNumeric(event)
{
	var key;
	if (window.event) {
		//ie
		key = window.event.keyCode;
	} else if (event.which) {
		key = event.which;
	}

	var isNumeric = false;	
	if (key != null) 
	{
		if (key >= 48 && key <= 57)	 
		{
			// key is numeric
			isNumeric = true;
		} 
		else if (key == 8 && isMozilla) 
		{
			//8 is a backspace with mozilla
			isNumeric = true;
		}
	} 
	else 
	{
		isNumeric = true;
	}
	return isNumeric;

}