//±â»çÆùÆ®
function setFontCookie( name, value, expiredays )
{
	var todayDate = new Date();
	todayDate.setDate( todayDate.getDate() + expiredays );
	document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";"
}

function font_getCookie( name )
{
        var nameOfCookie = name + "=";
        var x = 0;
	cookieFlg = document.cookie.indexOf(nameOfCookie);
    if (cookieFlg != -1) {

        while ( x <= document.cookie.length )
        {
                var y = (x+nameOfCookie.length);
                if ( document.cookie.substring( x, y ) == nameOfCookie ) {
                        if ( (endOfCookie=document.cookie.indexOf( ";", y )) == -1 )
                                endOfCookie = document.cookie.length;
                        return unescape( document.cookie.substring( y, endOfCookie ) );
                }
				
                x = document.cookie.indexOf( " ", x ) + 1;
				 if ( x == 0 )
                        break;
        }

        return "";
	}
	else{
	 return 15;
	}
}

function getFontCookie() { 
	var cookie = font_getCookie("getFontSize"); 
	if ( cookie == null ) 
		return 15; 
	if ( cookie.length ) 
		return cookie; 
	else 
		return 15; 
}

function diffFont(calcSize) {
	var news_content, lineHeight; 
	news_content = document.getElementById("news_content"); 
	if (calcSize > 0) { 
		if (txtSize <= 18) { 
			txtSize = txtSize + calcSize; 
			lineHeight = txtSize+Math.round(1.1*txtSize); 
			news_content.style.fontSize = txtSize + "px"; 
		} 
	} else { 
		if (txtSize > 12) { 
			txtSize = txtSize + calcSize; 
			lineHeight = txtSize+Math.round(1.1*txtSize); 
			news_content.style.fontSize = txtSize + "px"; 
			} 
	} 
	var fontDate = new Date; 
	fontDate.setDate(fontDate.getDate()+1000); 
	setFontCookie("getFontSize", txtSize, 1)//fontDate); 
}
var txtSize = parseInt(getFontCookie());