// JavaScript 

window.onload = function()
{
	printDate();
	initSizeChanger();
}

function printDate()
{
	var date = new Date(); 
	var stringDate = 'Heute ist der : ' + (date.getDate()<=9 ? '0' + date.getDate() : date.getDate())
						+ "." + 
						(date.getMonth()<=9 ? '0' + (date.getMonth()+1) : (date.getMonth()+1)) 
							+ "." + 
							(date.getFullYear()<=9 ? '0' + date.getFullYear() : date.getFullYear()); 
						
				document.getElementById('date').innerHTML='<span class="bold">' + stringDate + '</span>';
		
}
function initSizeChanger()
{
		document.getElementById('defaultSize').onclick = changeSize;
		document.getElementById('plusThirty').onclick = changeSize;
		document.getElementById('plusFifty').onclick = changeSize;
}
function changeSize()
{
		var size = this.getAttribute('id');
		setFontSize(size);
		return false;
}

function setFontSize(size)
{
	if(typeof size =="undefined"){	size = defaultSize; }
		
		var content = document.getElementById("mainContent");
	
		switch(size)
		{
				case 'defaultSize':
					content.style.fontSize = '100%';
					break;
				case 'plusThirty':
					content.style.fontSize = '130%';
					break;
				case 'plusFifty':
					content.style.fontSize = '150%';
					break;
				
			default: content.style.fontSize = '100%';
			break;
		}
		
		
}