function changeImages(){
	if (document.images){
		for	(var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src	= changeImages.arguments[i+1];
		}
	}
}

function setAreaCoords(){	
	for	(var i=0; i<setAreaCoords.arguments.length; i+=2) {
		document.getElementById(setAreaCoords.arguments[i]).coords = setAreaCoords.arguments[i+1];
	}	
}

function changeAlt(){
	if (document.images){
		for	(var i=0; i<changeAlt.arguments.length; i+=2) {
			document[changeAlt.arguments[i]].alt = changeAlt.arguments[i+1];
		}
	}
}

function changehref()
{    
    for	(var i=0; i<changehref.arguments.length; i+=2) 
    {
	    document.getElementById(changehref.arguments[i]).href	= changehref.arguments[i+1];
    }    
}


function setnumber(number)
{
    document.getElementById("heroImage").number = number;  
}

function previous()
{
    number= document.getElementById("heroImage").number;
    if(number<=1)
    {}
    else if(number==2)
    {
        click1();
    }
    else if(number==3)
    {
        click2();
    }
   
}

function next()
{
    number= document.getElementById("heroImage").number;      
    if(number>=3)
    {} 
    else if(number==1 || number==null)
    {
        click2();
        return;
    }
    else if(number==2)
    {
        click3();
        return;
    }
   
}