Other - Call funcn in onclick of an img tag inside popup.document.body.innerhtml

hi, i need onclick event inside img tag inside popup.body.innerhtml .i tried with the following code..but click event is not firing with the below code.I couldnt call either javascript funcn or server side funcn.can u pls help.thank u,
code:

[code] oPopup.document.body.innerHTML = '<a href="#"><td> <img ID="im1" alt="im1" height="350" runat="server" onclick="image1()" src="Source/Images/' + s[1] + '" /></td><td><img ID="im2" alt="im2" height="350px" onClick="" src="Source/Images/' + s[2] + '" /></td><td><img alt="im3" ID="im3"height="350px" onClick="" src="Source/Images/' + s[3] + '" /></td></a>';
In that image onclick i couldnt call any funcn either client side or server side.any suggestions?


javascript:
function richToolTip(Target) {


if (Target.title!='')
{

var oPopup = window.createPopup();
var popupBody = oPopup.document.body;

popupBody.style.backgroundColor = "#f0f8ff";
popupBody.style.border = "solid black 1px";


var i = Target.title.indexOf(",");

if (i > 0) {

var n = Target.title;
var s = new Array();
s = n.split(",");
var nodevalue = s[0];
var img1 = s[1];
var img2 = s[2];
var img3 = s[3];


document.getElementById('<%=hiddenfield1.ClientID%>').value = nodevalue;

oPopup.document.body.innerHTML = '<td> <img ID="im1" alt="im1" height="350" onclick="javascript:image1()" src="Source/Images/' + s[1] + '" /></td><td><img ID="im2" alt="im2" height="350px" onClick="" src="Source/Images/' + s[2] + '" /></td><td><img alt="im3" ID="im3"height="350px" onClick="" src="Source/Images/' + s[3] + '" /></td>';


}
popupBody.style.overflow = "auto";

oPopup.show(300, 160, 750, 400, "");

}


}