function zonehide(zoneid) 
{
    var zonee = document.getElementById(zoneid);
    var state = zonee.style.display;
    if(state=='block')
    {
        zonee.style.display='none';
    }
    else
    {
        zonee.style.display='block';
    }
}
function mailpage() 
{ 
    mail_str = "mailto:?subject=" + document.title; 
    mail_str += "&body= " + document.title; 
    mail_str += " " + location.href; 
    location.href = mail_str; 
} 
function dropdown(mySel)
{
    var myWin, myVal;
    myVal = mySel.options[mySel.selectedIndex].value;
    if(myVal)
       {
       if(mySel.form.target)myWin = parent[mySel.form.target];
       else myWin = window;
       if (! myWin) return true;
       myWin.location = myVal;
       }
    return false;
}







var resizeElement = 'content_main';

function resizeUp() {
	if(!document.getElementById(resizeElement).style.fontSize){
		document.getElementById(resizeElement).style.fontSize = '77%';
	} else {
		var str_fontsize = document.getElementById(resizeElement).style.fontSize;
		var num_fontsize = str_fontsize.substring(0,str_fontsize.length-1);
		//alert(num_fontsize);
		var num_newsize = num_fontsize * 1.1;
		document.getElementById(resizeElement).style.fontSize = num_newsize + '%';
	}
}

function resizeZero() {
	document.getElementById(resizeElement).style.fontSize = '70%';
}

function resizeDown() {
	if(!document.getElementById(resizeElement).style.fontSize){
		document.getElementById(resizeElement).style.fontSize = '63%';
	} else {
		var str_fontsize = document.getElementById(resizeElement).style.fontSize;
		var num_fontsize = str_fontsize.substring(0,str_fontsize.length-1);
		//alert(num_fontsize);
		var num_newsize = num_fontsize * 0.9;
		document.getElementById(resizeElement).style.fontSize = num_newsize + '%';
		//alert(num_newsize + '%');
	}
}