function change1()
{
document.getElementById('text1').className='intro'; 
document.getElementById('textintro').className='Hidden'; 
document.getElementById('header1').className='intro'; 
document.getElementById('headerintro').className='Hidden'; 
document.getElementById('IndexImage1').className='index-nav-holder'
document.getElementById('IndexImage2').className='index-nav-holder-hover';
document.getElementById('IndexImage3').className='index-nav-holder-hover';
document.getElementById('IndexImage4').className='index-nav-holder-hover';
document.getElementById('IndexImage5').className='index-nav-holder-hover';

}

function change2()
{
document.getElementById('text2').className='intro'; 
document.getElementById('textintro').className='Hidden'; 
document.getElementById('header2').className='intro'; 
document.getElementById('headerintro').className='Hidden'; 
document.getElementById('IndexImage2').className='index-nav-holder'
document.getElementById('IndexImage1').className='index-nav-holder-hover';
document.getElementById('IndexImage3').className='index-nav-holder-hover';
document.getElementById('IndexImage4').className='index-nav-holder-hover';
document.getElementById('IndexImage5').className='index-nav-holder-hover';
}

function change3()
{
document.getElementById('text3').className='intro'; 
document.getElementById('textintro').className='Hidden'; 
document.getElementById('header3').className='intro'; 
document.getElementById('headerintro').className='Hidden'; 
document.getElementById('IndexImage3').className='index-nav-holder'
document.getElementById('IndexImage1').className='index-nav-holder-hover';
document.getElementById('IndexImage2').className='index-nav-holder-hover';
document.getElementById('IndexImage4').className='index-nav-holder-hover';
document.getElementById('IndexImage5').className='index-nav-holder-hover';
}

function change4()
{
document.getElementById('text4').className='intro'; 
document.getElementById('textintro').className='Hidden'; 
document.getElementById('header4').className='intro'; 
document.getElementById('headerintro').className='Hidden'; 
document.getElementById('IndexImage4').className='index-nav-holder'
document.getElementById('IndexImage1').className='index-nav-holder-hover';
document.getElementById('IndexImage2').className='index-nav-holder-hover';
document.getElementById('IndexImage3').className='index-nav-holder-hover';
document.getElementById('IndexImage5').className='index-nav-holder-hover';
}

function change5()
{
document.getElementById('text5').className='intro'; 
document.getElementById('textintro').className='Hidden'; 
document.getElementById('header5').className='intro'; 
document.getElementById('headerintro').className='Hidden'; 
document.getElementById('IndexImage4').className='index-nav-holder-hover'
document.getElementById('IndexImage1').className='index-nav-holder-hover';
document.getElementById('IndexImage2').className='index-nav-holder-hover';
document.getElementById('IndexImage3').className='index-nav-holder-hover';
document.getElementById('IndexImage5').className='index-nav-holder';
}
id="IndexImage1"
function unchange(id)
{
document.getElementById('textintro').className = 'intro';
document.getElementById('text1').className = 'Hidden';
document.getElementById('text2').className = 'Hidden';
document.getElementById('text3').className = 'Hidden';
document.getElementById('text4').className = 'Hidden';
document.getElementById('text5').className = 'Hidden';

document.getElementById('headerintro').className = 'intro';
document.getElementById('header1').className = 'Hidden';
document.getElementById('header2').className = 'Hidden';
document.getElementById('header3').className = 'Hidden';
document.getElementById('header4').className = 'Hidden';
document.getElementById('header5').className = 'Hidden';
document.getElementById('IndexImage1').className='index-nav-holder'
document.getElementById('IndexImage2').className='index-nav-holder';
document.getElementById('IndexImage3').className='index-nav-holder';
document.getElementById('IndexImage4').className='index-nav-holder';
document.getElementById('IndexImage5').className='index-nav-holder';
}