function openthis(thisid)
{
var myWidth = 0, myHeight = 0;

if( typeof( window.innerWidth ) == 'number' ) 
 {
 myWidth = window.innerWidth;
 myHeight = window.innerHeight;
 } 
else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) 
 {
 myWidth = document.documentElement.clientWidth;
 myHeight = document.documentElement.clientHeight;
 } 
else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) 
 {
 myWidth = document.body.clientWidth;
 myHeight = document.body.clientHeight;
 }

var windowheight = myHeight;
var myimg = new Image();
var mysrc = thisid;

mysrc = mysrc.substring(2);

myimg.src = 'http://www.salomaspencilart.co.uk/pic/' + mysrc + '.jpg'

var height = myimg.height;
var width = myimg.width;

//alert(windowheight + '#' + height)

if(windowheight<height)
 {
 windowheight = windowheight - 70;
 windowheight = windowheight + 'px'
 document.getElementById(thisid).style.height=windowheight;
 }

document.getElementById(thisid).style.display='inline';
}

function closethis(thisid)
{
document.getElementById(thisid).style.display='none';
}