var mer;
function imgopen(path, w, h)
{	
    if (navigator.appName.indexOf('Microsoft Internet Explorer') != -1)
        var condition = (mer && !mer.closed);
    else
	var condition = (mer && !mer.closed && mer.closed != undefined);
    if (condition)
        mer.close();
    mer = window.open(path, "sp2_image", "toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=0, resizable=0, width="+ w +", height="+ h +", left="+(screen.width-w)/2+", top="+(screen.height-h)/2);
}

var t1,t21,op1,op2,op3,op4;
function appear()
{
    op1 = (document.getElementById("1popwin").style.opacity)?parseFloat(document.getElementById("1popwin").style.opacity):parseInt(document.getElementById("img1").style.filter)/100;  
    op2 = (document.getElementById("2popwin").style.opacity)?parseFloat(document.getElementById("2popwin").style.opacity):parseInt(document.getElementById("img2").style.filter)/100;  
    op3 = (document.getElementById("3popwin").style.opacity)?parseFloat(document.getElementById("3popwin").style.opacity):parseInt(document.getElementById("img3").style.filter)/100; 
	op4 = (document.getElementById("4popwin").style.opacity)?parseFloat(document.getElementById("4popwin").style.opacity):parseInt(document.getElementById("img4").style.filter)/100;  

    
    if(op1 < 1)   
    {  
        clearTimeout(t21);
        op1 += 0.05;
        op2 += 0.05;
        op3 += 0.05;
		op4 += 0.05;
        document.getElementById("1popwin").style.opacity = op1;
        document.getElementById("img1").style.filter='alpha(opacity='+op1*100+')';
      	document.getElementById("2popwin").style.opacity = op2;
        document.getElementById("img2").style.filter='alpha(opacity='+op2*100+')';
      	document.getElementById("3popwin").style.opacity = op3;
        document.getElementById("img3").style.filter='alpha(opacity='+op3*100+')';
		document.getElementById("4popwin").style.opacity = op4;
        document.getElementById("img4").style.filter='alpha(opacity='+op4*100+')';
        t1=setTimeout('appear()',120); 
    }
}