function getRand(onPage)
	{
	numArray = null;
	
		if(onPage == 'sidepic')
		{
			numArray = new Array("1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17");
		}
		
		if(onPage == 'welcomepic1')
		{
			numArray = new Array("1","10");
		}
		
		if(onPage == 'welcomepic2')
		{
			numArray = new Array("3","4");
		}
		
		if(onPage == 'welcomepic3')
		{
			numArray = new Array("5","6");
		}
		
		if(onPage == 'welcomepic4')
		{
			numArray = new Array("7","8");
		}
				
		//randomly load an image, using the var randNum
		//maxNum is the highest numbered image within the images directory
		
		
			var maxNum = numArray.length;
			var randNum = (Math.floor(Math.random() * maxNum));
			
			randNum = numArray[randNum];
			
		return randNum;
	}


	function getfocus(){
		window.focus();
	}