function changeTab1()
{
	document.getElementById('articlediv').style.display = 'block';
	document.getElementById('forumdiv').style.display = 'none';
	document.getElementById('booksdiv').style.display = 'none';
	document.getElementById('listendiv').style.display = 'none';
	document.getElementById('interviewsdiv').style.display = 'none';
	document.getElementById('link1').style.color = '#335062';
	document.getElementById('link2').style.color = '#335062';
	document.getElementById('link3').style.color = '#335062';
	document.getElementById('link4').style.color = '#335062';
	document.getElementById('link5').style.color = '#335062';
	document.getElementById('Article').className = 'heading';
	document.getElementById('Books').className = 'heading unselected';
	document.getElementById('Forums').className = 'heading unselected';
	document.getElementById('Listen').className = 'heading unselected';
	document.getElementById('Interviews').className = 'heading unselected';
}
function changeTab2()
{
	document.getElementById('articlediv').style.display = 'none';
	document.getElementById('forumdiv').style.display = 'none';
	document.getElementById('booksdiv').style.display = 'block';
	document.getElementById('listendiv').style.display = 'none';
	document.getElementById('interviewsdiv').style.display = 'none';
	document.getElementById('link2').style.color = '#335062';
	document.getElementById('link1').style.color = '#335062';
	document.getElementById('link3').style.color = '#335062';
	document.getElementById('link4').style.color = '#335062';
	document.getElementById('link5').style.color = '#335062';
	document.getElementById('Books').style.marginLeft = '6px';
	document.getElementById('Listen').className='heading unselected';
	document.getElementById('Article').className = 'heading unselected';
	document.getElementById('Forums').className = 'heading unselected';
	document.getElementById('Books').className = 'heading';
	document.getElementById('Interviews').className = 'heading unselected';
}
function changeTab3()
{
	document.getElementById('articlediv').style.display = 'none';
	document.getElementById('forumdiv').style.display = 'block';
	document.getElementById('booksdiv').style.display = 'none';
	document.getElementById('listendiv').style.display = 'none';
	document.getElementById('interviewsdiv').style.display = 'none';
	document.getElementById('link3').style.color = '#335062';
	document.getElementById('link1').style.color = '#335062';
	document.getElementById('link2').style.color = '#335062';
	document.getElementById('link4').style.color = '#335062';
	document.getElementById('link5').style.color = '#335062';
	document.getElementById('Forums').style.marginLeft = '6px';
	document.getElementById('Books').className='heading unselected';
	document.getElementById('Article').className = 'heading unselected';
	document.getElementById('Listen').className = 'heading unselected';
	document.getElementById('Forums').className = 'heading';
	document.getElementById('Interviews').className = 'heading unselected';
}
function changeTab4()
{
	document.getElementById('articlediv').style.display = 'none';
	document.getElementById('forumdiv').style.display = 'none';
	document.getElementById('booksdiv').style.display = 'none';
	document.getElementById('listendiv').style.display = 'block';
	document.getElementById('interviewsdiv').style.display = 'none';
	document.getElementById('link4').style.color = '#335062';
	document.getElementById('link1').style.color = '#335062';
	document.getElementById('link2').style.color = '#335062';
	document.getElementById('link3').style.color = '#335062';
	document.getElementById('link5').style.color = '#335062';
	document.getElementById('Listen').style.marginLeft = '6px';
	document.getElementById('Listen').className='heading';
	document.getElementById('Forums').className = 'heading unselected';
	document.getElementById('Article').className = 'heading unselected';
	document.getElementById('Books').className = 'heading  unselected';
	document.getElementById('Interviews').className = 'heading unselected';
}
function changeTab5()
{
	document.getElementById('articlediv').style.display = 'none';
	document.getElementById('forumdiv').style.display = 'none';
	document.getElementById('booksdiv').style.display = 'none';
	document.getElementById('listendiv').style.display = 'none';
	document.getElementById('interviewsdiv').style.display = 'block';
	document.getElementById('link4').style.color = '#335062';
	document.getElementById('link1').style.color = '#335062';
	document.getElementById('link2').style.color = '#335062';
	document.getElementById('link3').style.color = '#335062';
	document.getElementById('link5').style.color = '#335062';
	document.getElementById('Interviews').style.marginLeft = '6px';
	document.getElementById('Listen').className='heading unselected';
	document.getElementById('Forums').className = 'heading unselected';
	document.getElementById('Article').className = 'heading unselected';
	document.getElementById('Books').className = 'heading unselected';
	document.getElementById('Interviews').className = 'heading';
}
function numericOnly(obj)
{
	if(navigator.appName=="Netscape")
	{
		if(obj.which>=48 && obj.which<=57 || obj.which==40 || obj.which==41 || obj.which==45 || obj.which==43 || obj.which==48 || obj.which==57)
		{
			return true;
		}
		else
		{
			return false;
		}
	}
	else
	{
		if(obj.keyCode>=48 && obj.keyCode<=57 || obj.keyCode==40 || obj.keyCode==41 || obj.keyCode==45 || obj.keyCode==43 || obj.keyCode==48 || obj.keyCode==57)
		{
			return true;
		}
		else
		{
			return false;
		}
	}
	
}