window.onload=setStyles;

function setStyles(){}

function createCookie(name,value, days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}





function changeFontSize(val){
	
	var newval = val / 100;
	
    if(newval == 1){
    	var contentRight = document.getElementById('content-right-body');
        var p = contentRight.getElementsByTagName('p');
        var ul = contentRight.getElementsByTagName('ul');
		var h2 = contentRight.getElementsByTagName('h2');
        var h3 = contentRight.getElementsByTagName('h3');
		
        for(i=0;i<p.length;i++)
            p[i].style.fontSize=100+"%";
    
		for(i=0;i<ul.length;i++)
			ul[i].style.fontSize=100+"%";
			
		for(i=0;i<h2.length;i++)
			h2[i].style.fontSize=110+"%";
            
        for(i=0;i<h3.length;i++)
			h3[i].style.fontSize=100+"%";    
			
    
    	eraseCookie('changefontsize');
    }else{
    	
        var contentRight = document.getElementById('content-right-body');
        var p = contentRight.getElementsByTagName('p');
		var ul = contentRight.getElementsByTagName('ul');
		var h2 = contentRight.getElementsByTagName('h2');
        var h3 = contentRight.getElementsByTagName('h3');
		
		for(i=0;i<p.length;i++)
			p[i].style.fontSize=100*newval+"%";
			
		for(i=0;i<ul.length;i++)
			ul[i].style.fontSize=100*newval+"%";
			
		for(i=0;i<h2.length;i++)
			h2[i].style.fontSize=110*newval+"%";		
    	
        for(i=0;i<h3.length;i++)
			h3[i].style.fontSize=100*newval+"%"; 
    
    	createCookie('changefontsize', val, 1000);
    }
}

function changeTextColor(val){
	if(val == 'default'){
    	document.body.style.color='#000000';
    
		var contentRight = document.getElementById('content-right-body');
		
		var p = contentRight.getElementsByTagName('p');
		var ul = contentRight.getElementsByTagName('ul');
		var h1 = contentRight.getElementsByTagName('h1');
		var h2 = contentRight.getElementsByTagName('h2');
		var h3 = contentRight.getElementsByTagName('h3');
		var h2 = contentRight.getElementsByTagName('h2');
		var h5 = contentRight.getElementsByTagName('h5');
		var h6 = contentRight.getElementsByTagName('h6');
		var a = contentRight.getElementsByTagName('a');
		
		for(i=0;i<p.length;i++)
			p[i].style.color = '#000000';
		
		for(i=0;i<ul.length;i++)
			ul[i].style.color = '#000000';
		
		for(i=0;i<h1.length;i++)
			h1[i].style.color = '#000000';
			
		for(i=0;i<h2.length;i++)
			h2[i].style.color = '#000000';
			
		for(i=0;i<h3.length;i++)
			h3[i].style.color = '#000000';
		
		for(i=0;i<h2.length;i++)
			h2[i].style.color = '#880000';
		
		for(i=0;i<h5.length;i++)
			h5[i].style.color = '#000000';
			
		for(i=0;i<h6.length;i++)
			h6[i].style.color = '#000000';
		
		for(i=0;i<a.length;i++)
			a[i].style.color = '#880000';
            
        
        var contentLeftNav = document.getElementById('content-left-nav-body');
		var a = contentLeftNav.getElementsByTagName('a');     
        
        for(i=0;i<a.length;i++)
			a[i].style.color = '#000000';
            
            
        var contentLeftSp = document.getElementById('content-left-sp-body');
		var a = contentLeftSp.getElementsByTagName('a');
        var h4 = contentLeftSp.getElementsByTagName('h4');     
        
        for(i=0;i<h4.length;i++)
			h4[i].style.color = '#990000';      
         
        for(i=0;i<a.length;i++)
			a[i].style.color = '#000000';         
            
			
		eraseCookie('changetextcolor');
	
	}else{
    	document.body.style.color=val;
        
		var contentRight = document.getElementById('content-right-body');
		var p = contentRight.getElementsByTagName('p');
		var ul = contentRight.getElementsByTagName('ul');
		var h1 = contentRight.getElementsByTagName('h1');
		var h2 = contentRight.getElementsByTagName('h2');
		var h3 = contentRight.getElementsByTagName('h3');
		var h2 = contentRight.getElementsByTagName('h2');
		var h5 = contentRight.getElementsByTagName('h5');
		var h6 = contentRight.getElementsByTagName('h6');
		var a = contentRight.getElementsByTagName('a');
		
		for(i=0;i<p.length;i++)
			p[i].style.color = val;
		
		for(i=0;i<ul.length;i++)
			ul[i].style.color = val;
			
		for(i=0;i<h1.length;i++)
			h1[i].style.color = val;
			
		for(i=0;i<h2.length;i++)
			h2[i].style.color = val;
			
		for(i=0;i<h3.length;i++)
			h3[i].style.color = val;	
			
		for(i=0;i<h2.length;i++)
			h2[i].style.color = val;	
			
		for(i=0;i<h5.length;i++)
			h5[i].style.color = val;	
			
		for(i=0;i<h6.length;i++)
			h6[i].style.color = val;
		
		for(i=0;i<a.length;i++)
			a[i].style.color = val;
            
       
       	var contentLeftNav = document.getElementById('content-left-nav-body');
		var a = contentLeftNav.getElementsByTagName('a');     
        
        for(i=0;i<a.length;i++)
			a[i].style.color = val;
            
        var contentLeftSp = document.getElementById('content-left-sp-body');
		var a = contentLeftSp.getElementsByTagName('a');
        var h4 = contentLeftSp.getElementsByTagName('h4');     
        
        for(i=0;i<h4.length;i++)
			h4[i].style.color = val;      
         
        for(i=0;i<a.length;i++)
			a[i].style.color = val;     
            
		createCookie('changetextcolor', val, 1000);
	}
}


function changeBackColor(val){
	if(val == 'default' || val=='#ffffff'){
    	document.getElementById('content-right-body').style.backgroundColor = val;
        document.getElementById('content-left-nav-body').style.backgroundColor = val;
        document.getElementById('content-left-sp-body').style.backgroundColor = val;
		createCookie('changebackcolor', val, 1000);
	
    	var contentRight = document.getElementById('content-right-body');
    	var fieldset = contentRight.getElementsByTagName('fieldset');
		
        if(val=='#ffffff'){
        	for(i=0;i<fieldset.length;i++)
                fieldset[i].style.backgroundColor = '#f7f7f7';
        
        }else{
            for(i=0;i<fieldset.length;i++)
                fieldset[i].style.backgroundColor = val;
        } 
    
		eraseCookie('changebackcolor');
	}else{
		document.getElementById('content-right-body').style.backgroundColor = val;
        document.getElementById('content-left-nav-body').style.backgroundColor = val;
        document.getElementById('content-left-sp-body').style.backgroundColor = val;
		createCookie('changebackcolor', val, 1000);
	
    	var contentRight = document.getElementById('content-right-body');
    	var fieldset = contentRight.getElementsByTagName('fieldset');
		
        if(val=='#ffffff'){
        	for(i=0;i<fieldset.length;i++)
                fieldset[i].style.backgroundColor = '#f7f7f7';
        
        }else{
            for(i=0;i<fieldset.length;i++)
                fieldset[i].style.backgroundColor = val;
        }        
    }
}

function changeHeaderColor(val){
	if(val == 'default'){
		
        document.getElementById('header-image').style.backgroundImage = "url(http://www2.blind.msstate.edu/img/site/header_sub_left.gif)";
        
        var contentHeader = document.getElementById('header');
		var p = contentHeader.getElementsByTagName('p');
		
		contentHeader.style.backgroundColor = '#660000';
		p[0].style.color = '#ffffff';
		
		eraseCookie('changeheadercolor');
	}else if(val == '#ffffff'){
		
		document.getElementById('header-image').style.backgroundImage = "url(http://www2.blind.msstate.edu/img/site/header_sub_left_white.gif)";
		
		var contentHeader = document.getElementById('header');
		var p = contentHeader.getElementsByTagName('p');
		
		contentHeader.style.backgroundColor = val;
		p[0].style.color = '#660000';
		
		createCookie('changeheadercolor', val, 1000);
	}else{
	
		document.getElementById('header-image').style.backgroundImage = "url(http://www2.blind.msstate.edu/img/site/header_sub_left_grey.gif)";
		
		var contentHeader = document.getElementById('header');
		var p = contentHeader.getElementsByTagName('p');
		
		contentHeader.style.backgroundColor = val;
		p[0].style.color = '#ffffff';
		
		createCookie('changeheadercolor', val, 1000);
	}
}

function changePageWidth(val){
	if(val == 'default'){
    	document.getElementById('content').style.maxWidth = "1020px";
		eraseCookie('changepagewidth');
	}else{
		document.getElementById('content').style.maxWidth = "92%";
		createCookie('changepagewidth', val, 1000);
	}
}