/*Text Zoomer Code*/
function setCookie(c_name,value,expiredays)
{
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

function getCookie(c_name)
{
	if (document.cookie.length>0)
  	{
  		c_start=document.cookie.indexOf(c_name + "=");
  		if (c_start!=-1)
   		{
    	c_start=c_start + c_name.length+1;
    	c_end=document.cookie.indexOf(";",c_start);
    	if (c_end==-1) c_end=document.cookie.length;
    		return unescape(document.cookie.substring(c_start,c_end));
    	}
  	}
	return "";
}



var reset_font = 62.5;
var inc_by = 5;
var cur_font = reset_font;
function zoom_text(inc_type)
{
	
	if(inc_type =='reset')
	{
		document.body.style.fontSize = reset_font + '%';
		cur_font = reset_font;
		setCookie("FontSize",cur_font);
		
	}
	else if(inc_type =='zoom_in')
	{
		cur_font = cur_font + inc_by;
		if(cur_font>87.5) {return;}
		setCookie("FontSize",cur_font);
		document.body.style.fontSize = cur_font + '%';
	}
	else if(inc_type =='zoom_out')
	{
		cur_font = cur_font - inc_by;
		if(cur_font<42.5) {return;}
		setCookie("FontSize",cur_font);
		document.body.style.fontSize = cur_font + '%';
	}
	
}

window.onload = function(){
	if(getCookie('FontSize')!='')
		document.body.style.fontSize = getCookie('FontSize') + '%';
}


/*Live Chat - Show-Hide*/

function show_hide(elem_a, id_ans)
{
	var elem = document.getElementById(id_ans);
	var elem_img = elem_a.childNodes[0];
	if(elem.style.display=="none")
	{
		elem.style.display="block";
		elem_img.src = "images/on_arrow.gif";
	}
	else
	{
		elem.style.display="none";
		elem_img.src = "images/off_arrow.gif";
	}
}