var openMyModal_bfr = function(source) {

    modalWindow.windowId = "myModal_new";
    randnum = Math.random(); 
    modalWindow.width = 680;
    modalWindow.height = 510;
    modalWindow.content = "<iframe id='"+randnum+"' width='680' height='510' frameborder='0' scrolling='no' allowtransparency='true' src='" + source + "'><\/iframe>";
    modalWindow.open();
};   

var openMyModal = function(source)
{
    modalWindow.windowId = "myModal";
    randnum = Math.random(); 
    modalWindow.width = 300;
    modalWindow.height = 300;
    modalWindow.content = "<iframe id='"+randnum+"' width='440' height='450' frameborder='0' scrolling='no' allowtransparency='true' src='" + source + "'><\/iframe>";
    modalWindow.open();
};