// JavaScript Document


var picno=1;
var total=7;
function changepic(x)
{
	if(x=="next")
	{
		if(picno!=total)
		{
			picno=picno+1;
			document.getElementById("pic").src="office_pics/"+picno+".jpg";
				
			if(picno==2)
			{
				document.getElementById("arrow_left").src="images/leftarrow.jpg";
			}
			if(picno==total)
			{
				document.getElementById("arrow_right").src="images/rightarrow1.jpg";
			}
		}
	}
	
	
	if(x=="prev")
	{
		if(picno!=1)
		{
			picno=picno-1;
			document.getElementById("pic").src="office_pics/"+picno+".jpg";
				
			if(picno==1)
			{
				document.getElementById("arrow_left").src="images/leftarrow1.jpg";
			}
			if(picno==total-1)
			{
				document.getElementById("arrow_right").src="images/rightarrow.jpg";
			}
			
		}
	}
}